Blutch, pen name of Christian Hincker (born 27 December 1967 in Strasbourg) is a French comic book author. He is considered one of the main authors of French comics since the early 1990s. Biography
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6d0ced90c303b627010bc0438c25196202223d77ad542ef593691cb2fe8d53. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dbf306f-7baa-4842-b991-f5f7fd11cb76.json and https://artists.proofprofile.net/proofs/artist/3dbf306f-7baa-4842-b991-f5f7fd11cb76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf594ae42c2a6ddabafedfb45f949315645d5baed5218aae5e2e92f451fbeea9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2306282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62253ecdeb2dc101c738470a8e4295a613aa454cb44b73f6b3c3e978fe0ba14. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452227071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aa39980d970406f1171e74cda60a05ff77ff05319da9b9fed5d0420e481bfe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452227074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061325c07c8492b59267e9476b9839adcc6ce47ea9112cf2f5d33c7b3d46e835. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762106663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb63031dbc64a93c52a61fe6f324aa9d7fad814b9cede31ef282faf8214caa4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d8a8f6e1f6a60baa7709d38ad852e8ca64035e78501ac5a6c61e7e90248bd0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d585338111cc050db60285253887bf90849a0eae0d7b4724544086b7628deb1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efa4951bbf0a49ab1fe0ee21367e8a4eee3df9fdb3ba722a3f673220b817a8e. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed86cec1e308e21da5cd60a47d2d54b36f05d24408eeec09402fce5b0b6b2ca8. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ca82a8e2f9c4b6bc8e0bbb70a35c7e7a541cf62fd72591d97b2e3935327def. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d34a509aa10909c67bd214172596a007ec72f2b0f02201d3517e04e6eca59c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRQ342100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cb96d969e321570d4ffe9e90e3d8e2b4d8fc4bfba215fd8d8e1ae23a19970d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9Z62000487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554ed95a2a5f18994ce7328482e08076abb9e579f4a5585a41ba9256555b1032. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9Z62000490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db72e3624702d2504cfbcdeeaa4a9e3db71c48c3682e10ac61123ab99c87f62. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9Z62000491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcff52af8f2feb1a9ddfc7fcb87671064068c4983824589837b26dcdc7aa5ac0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU671902335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe664d6904a08300f50ca8cb57ff2b05e2ba1830c91a5dd030bfb77c848b0530a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1597265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cf71dc77c4a341f61a41123fa20274aa49cf605b4a7b07c243b91327e34a7c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1597266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38a9f7b46c3c86c0f1b14ae3ff59840c9533d46cf150b96a6640798df5aecb6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1597267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d49f3f6946b4dea370e31c4c1c783266418f539c30c0c7cbfea02832f7476e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1597268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695e327765fc8d5283ab2025b0c75fa9309e0578ebd756f48f44ebb047f70a4. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1597270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e621b88faa0db2127db6ca85574d501fd18c537e40b04274ff2c03a267dd76. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1435742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707ec0649f5895ac5e646dc1064f59a4589f1bcec99c3f81892c330d7f6e000. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1435744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517d83f7d1ebc67ca699f07203b29e0070399eb6c234c4890028ab1bb2cfabdb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452466298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06454a031c18bd06faf71845bb547321f7da2c322726d129a7a4ca13669a2fe1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2320816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90525bbb1da987fe98cd58d3434fcf58e700b5bb5843703f6419ce4d12317db2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRDX62210400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a292ef5a5462d85be9024eb411992ec5eaa12c837a83ae012719631b756852. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2287982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7023e7647564ee803c2c5d057679174b108fe486ca7f8e8ad6451198e92e38. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762163649.
Poplar - Jennifer Cardini & Damon Jee Remix
Poplar (Jennifer Cardini & Damon Jee Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e25b91607dfa65cfce9d8df40d274662a090b06285a8728a2c528efea9afaaa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762163648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843c6a848863888003527c667853ed823d10711bbb05b161981d67879ba30193. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41676293.