Camera Silens was a French punk band from Bordeaux active between 1981 and 1988. Their singer and bassist, Gilles Bertin took part in a bank robbery in Toulouse on 27 April 1988, where nearly 12 mill
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75dd0e89512d22807c2a67af8aabfc7488f5d88e9482348ad2df6b448960858. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9cf7e80-5c82-44dc-80dd-8cfe3ae3f4ef.json and https://artists.proofprofile.net/proofs/artist/c9cf7e80-5c82-44dc-80dd-8cfe3ae3f4ef.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb308d69abce1c3459a6ddbc7aae2d72a97f8cff58ee96f81f11a43ff5fc86161. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2398217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9159e30c9178d9f2377fee6cc44b9fc77a56bf9bea30ba9c6e0011b0ce5c6537. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2398218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f982b68cc5a5fe02310e99d80f90175e641a276d329d310fc4b4400cea6d02d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFYY2398219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a5c32c4c89083f6b69be8e480149e2f5d15cf8b5713111921e6149eb47a94b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYY2398220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254148fa8acca3204e97c9f2cfe0c8ad02adc291fd6471f7b756d10bab6ccb83. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2398221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7653cd9436d2d6bfb27f918b08b5188a87d7ca2ecbf95076553236096cab282. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2398222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ba6afe4ba23e3cdd8cdc6946f2464f9f091b040c5479afbe7da377a8f3a64e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2398223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771f4986b871909d4570dd91fc2527975bfa9fc2f3109e4b2343c948d1dd3a83. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFYY2398224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9995e9adeb9e6735ce33633ae8a95a219e60d0d13567f0cf08c0e87480d3de. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZFYY2398226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951049a32e3087f033a9068475e2e771929be7b8a0f9718ba08f9434de5955c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFYY2398227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768ae9bfa8e68fd4479a97476668a66b8fb1a178ec4ae8460e83654fe38e0cc3. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZFYY2398225.
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 0x2c6cb0345bcf3bbb00d297775671120b3c2440bc177da807eaec19e34a4a9a5f. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZFYY2398228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82581df226e8ef6a17971ca89bef3e7b85e804a914b208620209dc721f563789. 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/QZFYX2395660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d87c114938043527e6c38fad15c4c963edfd21aea8bd19230a512995c8c8eaf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYX2395661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548ef2e43c65a4e074ee07e33747787dbd27588e6a9cb30dbf82a5efcf12207d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZFYX2395662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5cb6eb5ac575e5d28bc503f051d7b19cc57cb5c1bc330859ed7f6325fb31a4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYX2395663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd64f1fb80c2de9c7370b731d7ecd1eb30471456310cd2975f150b95ffb4262. 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/QZFYX2395664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39bb1061228c5fbd3d937a5948dd9782e792d9fcd0cb94b22f9956900f80604. 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/QZFYX2395665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e117cea118af7c80698c88e938f5ddd9cdd0c579823889b0a16a8ef96b7748. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYX2395666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745ddffecded4febb8dbb0f8f71cb6ec6596fbab502c46a96bd3b08f07d89e48. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYX2395667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5072e1e2f6669c4bd138955547a55aaed68e258e0b1e1eb68e26159c2255b0. 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/QZFYX2395668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1e68dca1224d3c3bd0a1f5e0c130376abc162f44dbcab5e53de345abb7e1de. 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/QZFYX2395669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9041024aa93299a7bb139ef2872af47eed9af2e6bfcd9302f19777bc4ccecb28. 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/QZFYX2362303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58deccb204f3321daeb024f7d3b7b7f0700563d254cb4002603efda776a811e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZFYX2362304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230550acb7fdbf351ee53b538f0ab5d29310c90396b5638fc15326fb37e4fac. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/QZFYX2362305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb331035304264f2946e1c84d8059258f075800545b788247cfa7dfee2938ff2. 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/QZFYY2396173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aa8ec329eff45f836d92fda1b9d70ab2e97807eb1738faa73219392fc517ee. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZFYY2396172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3a914288e7652c4a974168f9b1b1dd540fd9772d830ce3f7c151e27ebeccc2. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZFYY2396174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af549224a8416ae12479c3d755677dbbdd5acb4af12d6882ee5360470c0566c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZFYY2396175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017e9679b0ce909bb3d9a75264246eae121e5736659399a8d31161971c3f9ff9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZFYY2396176.