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docs(corpus): per-platform watermark map + surface-dependent blind spot

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Grow the SynthID corpus to 109 originals (91 iPhone-photo negatives,
2 positives) and document what was learned studying 8 platforms:

- README: per-platform watermark map (C2PA issuer / SynthID pixel / IPTC
  / visible sparkle per platform) and an "originals, not previews" note
  (re-encoded previews strip metadata, so a clean preview is not proof).
- CLAUDE.md: surface-dependent blind spot -- the same Google model wraps
  C2PA in the Gemini app but emits the SynthID pixel watermark + sparkle
  with no C2PA/IPTC via the API/playground (AI Studio, Nano Banana), so
  synthid_source returns None despite SynthID being present; only the
  pixel oracle or the visible-sparkle detector catches those.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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test-user
2026-05-24 15:55:17 -07:00
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CLAUDE.md
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@@ -34,5 +34,5 @@ You are a **principal Python engineer** maintaining a CLI tool and library for r
- Pyright first run is slow (2-3 min) due to ML deps (torch/diffusers/transformers stubs); full-project `uv run pyright` can stall for many minutes — scope it to changed files.
- `ultralytics` monkey-patches `PIL.Image.open` and tries to autoload `pi_heif`. When `pi_heif` is missing, opening files raises `ModuleNotFoundError`, not `UnidentifiedImageError`. Code that opens user-supplied or unknown-format files should `except Exception`, not just `OSError`/`UnidentifiedImageError`.
- Metadata detection for AVIF/HEIF/JPEG-XL relies on a binary scan for `C2PA_UUID` + `IPTC_AI_MARKERS`. C2PA removal in those containers is implemented via `noai/isobmff.py` (top-level ``uuid`` / ``jumb`` box stripper, no re-encoding). EXIF/XMP boxes inside those containers are not yet scrubbed.
- **SynthID detection is metadata-only.** There is no reliable *local* detector of the SynthID *pixel* watermark — Google's decoder is proprietary, no public spec or API (only a waitlisted portal). We detect SynthID by its C2PA companion (`synthid_source` / `SYNTHID_C2PA_ISSUERS`), which is reliable while the manifest is intact but says nothing once C2PA is stripped. Google→SynthID is long-standing; OpenAI→SynthID is confirmed by OpenAI's Help Center (ChatGPT/Codex/API "include both C2PA metadata and SynthID watermarks", updated 2026-05-21) but time-gated (pre-rollout OpenAI images carry C2PA without SynthID), so the OpenAI verdict is hedged "likely". Oracles: Gemini app "Verify with SynthID" (Google), openai.com/verify (OpenAI). The spectral phase-coherence approach from `github.com/aloshdenny/reverse-SynthID` was evaluated (May 2026) and **does not work for real-content detection**: on its own shipped codebook + validation set, watermarked and cleaned images were indistinguishable (conf within noise, cleaned often higher); it only fires on pure-black 1024x1024 reference images at exact resolution (the controlled case it was calibrated on). The README's "90% / conf=0.91" reproduces only in that lab condition. Do not build a production detector on it; if revisited, it is experimental/diagnostic only and needs a per-resolution, per-model reference corpus. A from-scratch gpt-image pilot (2026-05-24) confirmed this independently: 5 independent solid-black gpt-image outputs share a near-identical fixed signature (pairwise residual correlation **0.92**, avg-template retains 97% energy), so the watermark/carrier IS strongly present and consistent on flat content — but the carrier frequencies extracted from it do NOT discriminate real content (carrier-to-random ratio: cleaned 1.86 > watermarked 1.53; a non-gpt-image image scored highest at 3.67). The signature drowns in content texture. Net: a perfectly consistent solid-color signature still yields no real-content pixel detector with magnitude/carrier methods.
- **SynthID detection is metadata-only.** There is no reliable *local* detector of the SynthID *pixel* watermark — Google's decoder is proprietary, no public spec or API (only a waitlisted portal). We detect SynthID by its C2PA companion (`synthid_source` / `SYNTHID_C2PA_ISSUERS`), which is reliable while the manifest is intact but says nothing once C2PA is stripped. **Surface-dependent blind spot (verified 2026-05-24):** the same Google model emits different metadata per surface -- the Gemini *app* wraps outputs in Google C2PA, but the *API/playground* (AI Studio, Nano Banana / gemini-2.5-flash-image) emits the SynthID *pixel* watermark (confirmed via the Gemini-app oracle) + the visible sparkle but **no C2PA/IPTC at all**, so `synthid_source` returns None despite SynthID being present. Only the pixel oracle or the visible-sparkle detector catches those. (Meta AI is another surface mismatch: it writes the IPTC `digitalSourceType=trainedAlgorithmicMedia` marker, not C2PA and not SynthID.) Google→SynthID is long-standing; OpenAI→SynthID is confirmed by OpenAI's Help Center (ChatGPT/Codex/API "include both C2PA metadata and SynthID watermarks", updated 2026-05-21) but time-gated (pre-rollout OpenAI images carry C2PA without SynthID), so the OpenAI verdict is hedged "likely". Oracles: Gemini app "Verify with SynthID" (Google), openai.com/verify (OpenAI). The spectral phase-coherence approach from `github.com/aloshdenny/reverse-SynthID` was evaluated (May 2026) and **does not work for real-content detection**: on its own shipped codebook + validation set, watermarked and cleaned images were indistinguishable (conf within noise, cleaned often higher); it only fires on pure-black 1024x1024 reference images at exact resolution (the controlled case it was calibrated on). The README's "90% / conf=0.91" reproduces only in that lab condition. Do not build a production detector on it; if revisited, it is experimental/diagnostic only and needs a per-resolution, per-model reference corpus. A from-scratch gpt-image pilot (2026-05-24) confirmed this independently: 5 independent solid-black gpt-image outputs share a near-identical fixed signature (pairwise residual correlation **0.92**, avg-template retains 97% energy), so the watermark/carrier IS strongly present and consistent on flat content — but the carrier frequencies extracted from it do NOT discriminate real content (carrier-to-random ratio: cleaned 1.86 > watermarked 1.53; a non-gpt-image image scored highest at 3.67). The signature drowns in content texture. Net: a perfectly consistent solid-color signature still yields no real-content pixel detector with magnitude/carrier methods.
- **SynthID v2 vs default pipeline:** the SDXL-based default profile (since May 2026) defeats SynthID v2. **Verified end-to-end (May 2026):** local SDXL run on a Gemini 3 Pro output, checked via the Gemini app's "Verify with SynthID" feature, returned "no SynthID watermark detected". Also confirmed against **OpenAI's** SynthID (2026-05-23): a fresh ChatGPT/gpt-image output read "SynthID detected" on openai.com/verify before the local SDXL run and "SynthID not detected" after (corpus regression chain: pos `4ef377bd` -> cleaned `47188e88`). The same configuration is used in raiw-app production (`fal-ai/fast-sdxl` at native ~1024 px, strength 0.05, steps 50). SD-1.5 dreamshaper at 768 px was previously the default and does NOT defeat v2 — verified empirically against the same feature (strength 0.04, 0.10, and elastic warp α∈{5,8} all flagged positive). That SD-1.5 path was removed; only `default` (SDXL) and `ctrlregen` profiles remain.
data/synthid_corpus/README.md
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@@ -104,3 +104,36 @@ Generation can be driven through the browser (the account must be logged in):
ingesting -- if the new image has not finished rendering, the script grabs the
prior one (the corpus dedups by sha256, but the notes would mislabel it).
ChatGPT also shows an A/B "which is better?" picker; click Skip first.
**Originals, not previews.** Some platforms render a low-res preview in the chat
(Grok serves a ~20KB 1024px JPEG/PNG; the in-page `<img>` fetch grabs *that*, not
the original). Previews are re-encoded and **strip metadata**, so a "clean"
preview is not proof the original is clean. Always pull the original via the
platform's native Download / lightbox button and sanity-check the file size (a
20KB "1024x1024" is a preview). ChatGPT's in-chat `<img>` *is* the full-res
oaiusercontent original, so fetch+blob is fine there; Grok needs the lightbox
Download; Leonardo serves the original JPEG in-chat (download button matches).
## Per-platform watermark map (observed, May 2026)
What each platform actually embeds, verified by byte-scan (and Gemini-app oracle
where noted). The detector's coverage is complementary: metadata catches C2PA /
IPTC; the visible detector catches the Gemini-family sparkle; the SynthID pixel
itself has no local detector (oracle only).
| Platform | C2PA issuer | SynthID pixel | IPTC "Made with AI" | Visible sparkle | Corpus label |
|---|---|---|---|---|---|
| Gemini app | Google | yes | - | yes | pos |
| ChatGPT / gpt-image | OpenAI | yes | - | - | pos |
| Microsoft Designer | OpenAI + Microsoft | yes (via OpenAI) | - | - | pos |
| Google AI Studio (Nano Banana) | **none** | yes (oracle-confirmed) | - | yes | pos (metadata blind spot) |
| Meta AI | none | no | **yes** | - | neg (for SynthID) |
| Leonardo.ai | none | no | no | - | neg |
| Grok (xAI) | none (non-adopter) | no | no | - | neg (captured: clean low-res preview) |
| Bing Image Creator (DALL-E) | (expect OpenAI, like Designer) | - | - | - | not captured (UI uncooperative) |
Key takeaways:
- The same model differs by *surface*: Gemini app wraps C2PA, AI Studio (API/playground) emits none -- only the pixel + sparkle survive.
- Microsoft Designer's DALL-E backend inherits OpenAI's C2PA+SynthID (issuer "OpenAI, Microsoft").
- Meta uses the IPTC `digitalSourceType` marker, not C2PA or SynthID.
- Bing and Grok web UIs are uncooperative for autonomous capture (no document_idle for screenshots; blob downloads intermittently no-op; low-res in-chat previews). Use their native download button manually if a full-res sample is needed.
data/synthid_corpus/manifest.csv
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@@ -15,3 +15,96 @@ fb28dba2a82cc101a92fdee5714867b32610d0564f37737fe4bb70782b8ecf32,fb28dba2-Gemini
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d5a4f2f81e86696cd18d38796c6b92ce96dcfe073bfd3a9c5dedf9d574aa66d6,d5a4f2f8-span_vs_flattening.png,neg,iPhone (me/post_photos),,1600,1000,png,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
2b148db2b1a314a87647a03828b3d235e7c4c939252f448b572b7658c7bb9723,2b148db2-IMG_1832.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
2d02fed0b6d60ce1142eadac9837a83896569dddbdad7cc5cfdec018f0506d36,2d02fed0-IMG_1520.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
68bf936a5491478484a295b3d882fef042f77e9784cae1b64a9e6e1b72d0628c,68bf936a-IMG_1107.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
32a9b71a13ecec3c90dcd7b54b90206acbe0f646a2296c955e227baa83823eec,32a9b71a-IMG_1238.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
8f170c06f843c2bcf4cf6e249dd76365287fdb3a322637ba93c570f50cb19772,8f170c06-IMG_1078.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
f7634a3779812f52de0599736b4c35f55b61027bae191e4ca060b10341661731,f7634a37-IMG_1605.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
e2ae859a96a5076f37b6efc5a1dad4952e29550f93cee4bba4899ef6fda09305,e2ae859a-IMG_3394.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
b4ea1e6f9134dfc91b4334ed723a15c937eee4fe3fd65b210cc31959884e5c4e,b4ea1e6f-IMG_1595.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
bf9d4d9ebb17cbae46407446d440b273fc136ea3e157a648e4959b116fca376d,bf9d4d9e-IMG_0916.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
2546689c376f365188a5e5a85e72982ff099b5680608e861c8490bde340e8a29,2546689c-IMG_2481.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
88944f46e3d85ea5c4f6d4559f8da9360f68060f73bb8b8c3344c3fdd3b54476,88944f46-IMG_2157.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
3fc4c8316012abc462df5534d4d995e5af84d35076a2927331107ff994293d9e,3fc4c831-IMG_2566.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
af59d9a72a859a72b6ad8e6178992e320934f74eb2a88d74c9d4c64b5bdb89f5,af59d9a7-IMG_2198.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
4f9d6807ff42d0bcd9494dc5d4c9d15f7b96691e29bfe2d670b8e3bceba934de,4f9d6807-IMG_0371.HEIC,neg,iPhone (me/post_photos),,3088,2316,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
237492e65e73acacf8135a2a903a2a231ee9c68ddcc2c590e90ec6e54c6a4520,237492e6-IMG_0473.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
d8a339db6b19c71d4ccf1a467c8999c5d2947b5c8cfd07a8b17b343f579e3f26,d8a339db-IMG_1798.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
abe73f771fb57c959663070cb560cfd5365999ef6b9aa419b18ea1031fab4a9d,abe73f77-IMG_3434.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
15fbe3e101bce529ec9b7a49fb668ecdad62c3aceb6e649f4668b58af1784c32,15fbe3e1-IMG_0481.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
455d618e94ebf2e469ede016e06c48def5cc14ef68c090584b31570b9fc5e34e,455d618e-IMG_2957.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
dae46cfca7baa921675ffaf74701617b6fe10e629c5e7f099c67bf21a3f2a62c,dae46cfc-IMG_0356.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
cb4d61e66982736d552b043866d80bfb304fe1f44ec07f3acabeff71d08b3708,cb4d61e6-IMG_1681.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
c7776595d517bebab73370b6395deb1dc2bb507f99d2bd551bfe1a2416f5165b,c7776595-168E1031-ADC1-48A2-8B63-F5EB228DF5B4.JPG,neg,iPhone (me/post_photos),,3664,2062,jpeg,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
5fe59521d579b536340253d2bcaa7c28ddd2485fa964fc27a9b9e5118ad0cdd1,5fe59521-IMG_1496.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
81e4e532c124b182b1608d19feda52b829390adc9b77f47b72d89829035917ff,81e4e532-IMG_2193.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
4ead7918a5aeea7fba78b36af44358fea7ed1db7f46f4bc675152b9d04e68c38,4ead7918-IMG_1300.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:48Z,post photo; no C2PA/SynthID (verified)
75f8a25c217374689d8224d58736f09245882334a9e4d39931025bd66a6df341,75f8a25c-IMG_3540.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
574acd7b8a49652d62df90539c2e18d1f3f510399a294f6c5209ab725c96a7df,574acd7b-IMG_3393.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
8115feaa7b758fd1b984c55355fc8f4c10dfe02192fe810bb6692556190d5176,8115feaa-IMG_1341.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
4c795238b89178cf52a3674e721ed7f4cd5068028385491d12171a3c62545c35,4c795238-IMG_3034.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
5abfaccb37c549de67c7f3a751a528a423e24a82c643fdb29094be8debbb206d,5abfaccb-IMG_3018.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
5fed1923d513c1e9ffcba2f240e617fa9344fb39d35144169570ece8b0bd0f33,5fed1923-IMG_0272.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
b3e1b034bc9ff1fd7e3db77ae0f0a695fcb4ed7bdcb473312427d78aa18700a1,b3e1b034-IMG_1199.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
79a12ccab0ccb954b1917d8edc75cb7c01d02c3a803b34f45be7afdb69cf80ea,79a12cca-IMG_0767.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
7252adc2103f7be6d04d56e0eed0d90122c8203af0ae08c28f922338b7c1bbb5,7252adc2-IMG_0623.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
06b04d8fe8e1cd6bee9a973f93bfda37586924cbfec7d372f59d52aa9196160b,06b04d8f-IMG_1474.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
591636c01c57864c44bdf7c1062bf6fca87efa8fae25bfc58c7cffb5a73424ab,591636c0-IMG_2809.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
ca2f226f45a5e37071605f074fa64de31cd09f923b22f57bb8255aa9046c6b92,ca2f226f-IMG_1419.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
ed751e2489ce4b26c268019942ed65a1f95a10f8056f26ac646d7d19e5db58ad,ed751e24-IMG_1225.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
3757e6100e567cbbf8eadf4cb8a064d79073cea1588251125a3b1ae13893e778,3757e610-IMG_2583.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
e973424c779cfa5dcd2403f103673423771192509395586f8efc459c92240d5d,e973424c-IMG_2215.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
46657fb69680b3e5db8fdb17aa306f2b6ee41a719408ac5812ff4cb399e15485,46657fb6-IMG_1439.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
dd112d116dda31847b50f40ab0990306d1c1f137780c67bb094ee6992f2d6f7e,dd112d11-IMG_1317.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
a0cdcc17d39eda2a7b2c34ff1f4ed97290fa996fef530c1d24da91722b1a6893,a0cdcc17-IMG_0005.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
70fabcbeedafb3c033d5805328ffd12bf644102e8666b878eca5968bd075b3fe,70fabcbe-IMG_3500.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
8fdb574a94e65e14ac29017cf2d5a2ede18a8c4e3f12e04c64292b0d38570062,8fdb574a-IMG_3557.HEIC,neg,iPhone (me/post_photos),,4032,3024,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
cb6777332e357aa38916400c2c1fe76801aad54946e789e9fa6a7d4659d02948,cb677733-IMG_3582.HEIC,neg,iPhone (me/post_photos),,5712,4284,heic,,,none,2026-05-24T20:58:49Z,post photo; no C2PA/SynthID (verified)
72c71846fdb9eb3d960142c24627304349ee4fd8665d10d06e336430b0e20d80,72c71846-meta_lake.jpg,neg,Meta AI,meta,810,1440,jpeg,,,none,2026-05-24T21:33:47Z,"IPTC Made-with-AI (trainedAlgorithmicMedia); NO SynthID, NO C2PA"
c86973424817f62510e2a312b85c52e05adf47ace87a8e717fd442607596f501,c8697342-aistudio_lake.png,pos,Google AI Studio (Nano Banana),gemini-2.5-flash-image,1024,1024,png,,,gemini-app,2026-05-24T21:39:09Z,"API/playground: SynthID pixel CONFIRMED (Gemini-app oracle) + visible sparkle, but NO C2PA/IPTC -> synthid_source blind spot"
1f81827c06d67cf6f6c7f5d53ec8f9738183942a6d1d2717b161fea0fdcc540a,1f81827c-Designer.png,pos,Microsoft Designer,dall-e (Designer),1024,1024,png,"OpenAI, Microsoft",yes,c2pa-metadata,2026-05-24T22:18:40Z,C2PA issuer OpenAI+Microsoft; synthid_source=OpenAI (DALL-E surface inherits OpenAI SynthID+C2PA)
f3ebe4683fc40aa2a0b80cc3ced3dc8062385ae32b488f4b33cb2330949e658d,f3ebe468-leonardo_lake.jpg,neg,Leonardo.ai,lucid-origin,1024,1024,jpeg,,,none,2026-05-24T22:22:15Z,non-SynthID AI; NO provenance metadata (no C2PA/IPTC/SynthID)
12775f4c0aec1ecd615e88c4941a788a053d0258d08d31ad34d330d3e21969bd,12775f4c-grok_original.jpg,neg,Grok (xAI),aurora,784,1168,jpeg,,,none,2026-05-24T22:47:46Z,full-res original via Download button; xAI non-adopter; NO C2PA/IPTC/SynthID (has benign EXIF block)
1 sha256 filename label source model width height format c2pa_issuer synthid_metadata verified_via added notes
15 d20d4cc936dbdfe909c52502039a9e84ba93d97b42b24a0acee5b7d6c71930ae d20d4cc9-Gemini_Generated_Image_ug6kdpug6kdpug6k.png pos Gemini app gemini 2816 1536 png Google LLC yes c2pa-metadata 2026-05-24T19:33:15Z content: red coffee mug product shot
16 28f323345f6496d936c3f1a72f671ddf59d0f81565c24a63bf3286860f633afe 28f32334-chatgpt_fisherman.png pos ChatGPT gpt-image 1023 1537 png OpenAI yes c2pa-metadata 2026-05-24T19:39:20Z content: elderly fisherman portrait (fetch+blob dl)
17 88e61a384c2e0b12d97bc66046e4a10542b2987448ba89c4b49e66311e969c84 88e61a38-chatgpt_tokyo.png pos ChatGPT gpt-image 1023 1537 png OpenAI yes c2pa-metadata 2026-05-24T19:42:02Z content: tokyo street night (fetch+blob dl)
18 607087e40da1ac2636f7233c06784295d374d503ab928bb0c0c9b09e0140b3bc 607087e4-IMG_0505.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
19 1fa5f77f710c11a4cc69fed60195450def734401ed57c2600a84ce191f985440 1fa5f77f-IMG_0786.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
20 ac32346771d3ebb6b9d7d395e1efad995972fb708b76082905d15299d61dcfaa ac323467-IMG_0114.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
21 2ea228ed270cd169e9d38bc3f1a162de7edbf54b6e5ad3c701a3c90010ec7067 2ea228ed-IMG_1791.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
22 eb0e14f7c8dfe88d710804fe0d2e74eb033d4d72db5525a526bb3751f2d52f4f eb0e14f7-ai_price_software_not_hardware.png neg iPhone (me/post_photos) 1200 675 png none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
23 cd2c0eba3625bf7a90178063b4a769667cf00904db968efff7502734f8456892 cd2c0eba-IMG_3201.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
24 208b21ccfa8c81d2e75903a6083f2806ac068d856ad12957e6f6ea7870af0096 208b21cc-IMG_0712.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
25 f9c64806fd2b1ea4cf39a49f67e651f2146e9c892f1a401d9981e9d7f0601062 f9c64806-grep_vs_vector_agentic_search.png neg iPhone (me/post_photos) 1600 900 png none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
26 beaae48cf40c8d471c9c1a49d205cd87cf6c079211847f66ced4d4310aa7cff4 beaae48c-IMG_1699.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
27 41307ceeb9c981fa766ec4d711fe72f647fce86d21f1026e63c45dcd95063a65 41307cee-IMG_2148.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
28 3801fbe36a77134336508f888f658deb03657c5b765c8b3205b2d928e1b3a5f8 3801fbe3-IMG_2364.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
29 3012ff6d1db0535423c4dfb22e8d4d2da77b94b776c38cf06fa06958b7a71860 3012ff6d-IMG_2489.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
30 b978efbdec5ec96b320e53fb23a1aec306f5a32a796a56a032ae66929c803e7b b978efbd-IMG_0334.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
31 1136f4df74e842e4ba95c91731656e4bf125361b0aa83b1fc4e128161668a8fe 1136f4df-IMG_0363.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
32 6e768835f52e840ec0f6af4a9604bd31ed38b2ce3fa187cfe5cc7daa2acb56e4 6e768835-IMG_3492.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
33 5470ded7892073b1deb31980b3cc541ce73b4cf025d56a43eb6e80c2db810ff2 5470ded7-IMG_1417.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
34 0bb4c176d83fbcbf4e628de7587d6183b9134c4f3fa85f55b96e94185273c7f6 0bb4c176-IMG_1790.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
35 c1f3267973e33e91c82ab889d21b6be18a6128e2178a85403bf89b04a6ea8c36 c1f32679-IMG_2981.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
36 efcb985a4ecc055029bea0df82ba161442340b1df6aa54639c2c717f8ebe7c4e efcb985a-IMG_0841.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
37 383c6d9f4d74d1d30eeab2bfbe9b83212dcedb52b36b8ac403efa45730563326 383c6d9f-IMG_1616.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
38 b284d9ad7f58a44dc2b0d2e69b12236cf004d5052fb5484cfa1c21548bfd3821 b284d9ad-IMG_1250.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
39 85802ce2d2d8a7a155e631ef36a82cb912691fbbab4b2c28bb2438efed0b9225 85802ce2-IMG_2973.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
40 15b1e4e26340630345fc18e439ec98995ddca2816f38e13d4b2ee9e99ed26bac 15b1e4e2-IMG_1563.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
41 d8a1eed3cc327b5db7f5fd635fd4c37b29ff24a3360fce57622ea1cf35af284a d8a1eed3-IMG_1666.heic neg iPhone (me/post_photos) 3024 4032 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
42 505047f592db5fd2ce4fc0fc3580e0b28abc19b6720a98a73530f2cb7158f7c1 505047f5-IMG_2569.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:47Z post photo; no C2PA/SynthID (verified)
43 a499773829f0ed206f9bd8c46740fc01955c1d43f45e8e775582015d9db9956c a4997738-IMG_1980.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
44 a2f98b6a8887c7b4909601c46d03fb1f6e5145e714ffe3bc8b7056bc636bfee0 a2f98b6a-IMG_0780.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
45 9172987b14366231857e74a3f7b554ec0fc8cc23ebb7f88cd8eca3ce95ef8498 9172987b-IMG_3293.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
46 2f21fcd7b1ace88aa368028a7a97ffadd6ebe7cffe6c221d47abbed2a205074b 2f21fcd7-IMG_3144.PNG neg iPhone (me/post_photos) 2250 3000 png none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
47 d95e9af4d343501c4597918b5dfc66a1afc338b126e29c9eba13e7b2a61174d5 d95e9af4-IMG_1390.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
48 25b72de3a2ba4110c5dea68e82af6d19592eecc7000b2f12f52f8512afd48e73 25b72de3-IMG_1369.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
49 d18874c51b17ced8f736e24cd12ba54bd6c4f76292cba702a9c8a2d97c72f1c4 d18874c5-IMG_1447.HEIC neg iPhone (me/post_photos) 3088 2316 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
50 bf5abcd01037f44b2418b586c3b864340188a00f95047433832972ab797ae2d5 bf5abcd0-IMG_0743.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
51 a2782e0e6bb3d611925cace6ca3da10259ae70229aad3f366bc25b9e94538ab4 a2782e0e-IMG_0345.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
52 3fc0c4253f86427777904f41355eacbdcc1a29f6897ec694c7fc68b6e7f70846 3fc0c425-IMG_1450.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
53 56023f628e6d8ad0a3fb204b5bd10c9e9182446bad9032b0ab8c8d068a311bc7 56023f62-IMG_1796.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
54 100a121953049a83a714cd8771c7ac3f5afba69d8f8abb073535e98358395014 100a1219-IMG_0037.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
55 3e287f9e838f4f1bef5d8417957ea504954e5851de61656bbe32915c90db3a1f 3e287f9e-IMG_2323.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
56 237ff92d14163216687649f1fe222d5427f8600d8a97cb667386e71466a5d908 237ff92d-IMG_2270.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
57 a3f4a1a85bbd1cc6236e20c5a7d58bc18ccf695bc471cc02f36c1ad885551df8 a3f4a1a8-IMG_1309.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
58 be2f8bcb71f4bc5a4e79821bb4691e0f3c817ce916a35b05ffacce003a380c1c be2f8bcb-IMG_0999.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
59 d5a4f2f81e86696cd18d38796c6b92ce96dcfe073bfd3a9c5dedf9d574aa66d6 d5a4f2f8-span_vs_flattening.png neg iPhone (me/post_photos) 1600 1000 png none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
60 2b148db2b1a314a87647a03828b3d235e7c4c939252f448b572b7658c7bb9723 2b148db2-IMG_1832.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
61 2d02fed0b6d60ce1142eadac9837a83896569dddbdad7cc5cfdec018f0506d36 2d02fed0-IMG_1520.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
62 68bf936a5491478484a295b3d882fef042f77e9784cae1b64a9e6e1b72d0628c 68bf936a-IMG_1107.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
63 32a9b71a13ecec3c90dcd7b54b90206acbe0f646a2296c955e227baa83823eec 32a9b71a-IMG_1238.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
64 8f170c06f843c2bcf4cf6e249dd76365287fdb3a322637ba93c570f50cb19772 8f170c06-IMG_1078.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
65 f7634a3779812f52de0599736b4c35f55b61027bae191e4ca060b10341661731 f7634a37-IMG_1605.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
66 e2ae859a96a5076f37b6efc5a1dad4952e29550f93cee4bba4899ef6fda09305 e2ae859a-IMG_3394.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
67 b4ea1e6f9134dfc91b4334ed723a15c937eee4fe3fd65b210cc31959884e5c4e b4ea1e6f-IMG_1595.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
68 bf9d4d9ebb17cbae46407446d440b273fc136ea3e157a648e4959b116fca376d bf9d4d9e-IMG_0916.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
69 2546689c376f365188a5e5a85e72982ff099b5680608e861c8490bde340e8a29 2546689c-IMG_2481.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
70 88944f46e3d85ea5c4f6d4559f8da9360f68060f73bb8b8c3344c3fdd3b54476 88944f46-IMG_2157.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
71 3fc4c8316012abc462df5534d4d995e5af84d35076a2927331107ff994293d9e 3fc4c831-IMG_2566.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
72 af59d9a72a859a72b6ad8e6178992e320934f74eb2a88d74c9d4c64b5bdb89f5 af59d9a7-IMG_2198.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
73 4f9d6807ff42d0bcd9494dc5d4c9d15f7b96691e29bfe2d670b8e3bceba934de 4f9d6807-IMG_0371.HEIC neg iPhone (me/post_photos) 3088 2316 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
74 237492e65e73acacf8135a2a903a2a231ee9c68ddcc2c590e90ec6e54c6a4520 237492e6-IMG_0473.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
75 d8a339db6b19c71d4ccf1a467c8999c5d2947b5c8cfd07a8b17b343f579e3f26 d8a339db-IMG_1798.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
76 abe73f771fb57c959663070cb560cfd5365999ef6b9aa419b18ea1031fab4a9d abe73f77-IMG_3434.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
77 15fbe3e101bce529ec9b7a49fb668ecdad62c3aceb6e649f4668b58af1784c32 15fbe3e1-IMG_0481.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
78 455d618e94ebf2e469ede016e06c48def5cc14ef68c090584b31570b9fc5e34e 455d618e-IMG_2957.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
79 dae46cfca7baa921675ffaf74701617b6fe10e629c5e7f099c67bf21a3f2a62c dae46cfc-IMG_0356.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
80 cb4d61e66982736d552b043866d80bfb304fe1f44ec07f3acabeff71d08b3708 cb4d61e6-IMG_1681.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
81 c7776595d517bebab73370b6395deb1dc2bb507f99d2bd551bfe1a2416f5165b c7776595-168E1031-ADC1-48A2-8B63-F5EB228DF5B4.JPG neg iPhone (me/post_photos) 3664 2062 jpeg none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
82 5fe59521d579b536340253d2bcaa7c28ddd2485fa964fc27a9b9e5118ad0cdd1 5fe59521-IMG_1496.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
83 81e4e532c124b182b1608d19feda52b829390adc9b77f47b72d89829035917ff 81e4e532-IMG_2193.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
84 4ead7918a5aeea7fba78b36af44358fea7ed1db7f46f4bc675152b9d04e68c38 4ead7918-IMG_1300.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:48Z post photo; no C2PA/SynthID (verified)
85 75f8a25c217374689d8224d58736f09245882334a9e4d39931025bd66a6df341 75f8a25c-IMG_3540.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
86 574acd7b8a49652d62df90539c2e18d1f3f510399a294f6c5209ab725c96a7df 574acd7b-IMG_3393.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
87 8115feaa7b758fd1b984c55355fc8f4c10dfe02192fe810bb6692556190d5176 8115feaa-IMG_1341.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
88 4c795238b89178cf52a3674e721ed7f4cd5068028385491d12171a3c62545c35 4c795238-IMG_3034.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
89 5abfaccb37c549de67c7f3a751a528a423e24a82c643fdb29094be8debbb206d 5abfaccb-IMG_3018.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
90 5fed1923d513c1e9ffcba2f240e617fa9344fb39d35144169570ece8b0bd0f33 5fed1923-IMG_0272.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
91 b3e1b034bc9ff1fd7e3db77ae0f0a695fcb4ed7bdcb473312427d78aa18700a1 b3e1b034-IMG_1199.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
92 79a12ccab0ccb954b1917d8edc75cb7c01d02c3a803b34f45be7afdb69cf80ea 79a12cca-IMG_0767.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
93 7252adc2103f7be6d04d56e0eed0d90122c8203af0ae08c28f922338b7c1bbb5 7252adc2-IMG_0623.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
94 06b04d8fe8e1cd6bee9a973f93bfda37586924cbfec7d372f59d52aa9196160b 06b04d8f-IMG_1474.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
95 591636c01c57864c44bdf7c1062bf6fca87efa8fae25bfc58c7cffb5a73424ab 591636c0-IMG_2809.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
96 ca2f226f45a5e37071605f074fa64de31cd09f923b22f57bb8255aa9046c6b92 ca2f226f-IMG_1419.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
97 ed751e2489ce4b26c268019942ed65a1f95a10f8056f26ac646d7d19e5db58ad ed751e24-IMG_1225.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
98 3757e6100e567cbbf8eadf4cb8a064d79073cea1588251125a3b1ae13893e778 3757e610-IMG_2583.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
99 e973424c779cfa5dcd2403f103673423771192509395586f8efc459c92240d5d e973424c-IMG_2215.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
100 46657fb69680b3e5db8fdb17aa306f2b6ee41a719408ac5812ff4cb399e15485 46657fb6-IMG_1439.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
101 dd112d116dda31847b50f40ab0990306d1c1f137780c67bb094ee6992f2d6f7e dd112d11-IMG_1317.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
102 a0cdcc17d39eda2a7b2c34ff1f4ed97290fa996fef530c1d24da91722b1a6893 a0cdcc17-IMG_0005.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
103 70fabcbeedafb3c033d5805328ffd12bf644102e8666b878eca5968bd075b3fe 70fabcbe-IMG_3500.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
104 8fdb574a94e65e14ac29017cf2d5a2ede18a8c4e3f12e04c64292b0d38570062 8fdb574a-IMG_3557.HEIC neg iPhone (me/post_photos) 4032 3024 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
105 cb6777332e357aa38916400c2c1fe76801aad54946e789e9fa6a7d4659d02948 cb677733-IMG_3582.HEIC neg iPhone (me/post_photos) 5712 4284 heic none 2026-05-24T20:58:49Z post photo; no C2PA/SynthID (verified)
106 72c71846fdb9eb3d960142c24627304349ee4fd8665d10d06e336430b0e20d80 72c71846-meta_lake.jpg neg Meta AI meta 810 1440 jpeg none 2026-05-24T21:33:47Z IPTC Made-with-AI (trainedAlgorithmicMedia); NO SynthID, NO C2PA
107 c86973424817f62510e2a312b85c52e05adf47ace87a8e717fd442607596f501 c8697342-aistudio_lake.png pos Google AI Studio (Nano Banana) gemini-2.5-flash-image 1024 1024 png gemini-app 2026-05-24T21:39:09Z API/playground: SynthID pixel CONFIRMED (Gemini-app oracle) + visible sparkle, but NO C2PA/IPTC -> synthid_source blind spot
108 1f81827c06d67cf6f6c7f5d53ec8f9738183942a6d1d2717b161fea0fdcc540a 1f81827c-Designer.png pos Microsoft Designer dall-e (Designer) 1024 1024 png OpenAI, Microsoft yes c2pa-metadata 2026-05-24T22:18:40Z C2PA issuer OpenAI+Microsoft; synthid_source=OpenAI (DALL-E surface inherits OpenAI SynthID+C2PA)
109 f3ebe4683fc40aa2a0b80cc3ced3dc8062385ae32b488f4b33cb2330949e658d f3ebe468-leonardo_lake.jpg neg Leonardo.ai lucid-origin 1024 1024 jpeg none 2026-05-24T22:22:15Z non-SynthID AI; NO provenance metadata (no C2PA/IPTC/SynthID)
110 12775f4c0aec1ecd615e88c4941a788a053d0258d08d31ad34d330d3e21969bd 12775f4c-grok_original.jpg neg Grok (xAI) aurora 784 1168 jpeg none 2026-05-24T22:47:46Z full-res original via Download button; xAI non-adopter; NO C2PA/IPTC/SynthID (has benign EXIF block)