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 0xd8c45df8394cdafad604cc14c62fde1f76075f98cd2beaf99184e90850eb02cc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3132a0d-fc2a-4231-9b2a-11108e951d3b.json and https://artists.proofprofile.net/proofs/artist/e3132a0d-fc2a-4231-9b2a-11108e951d3b.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 0x6cf27e169173d6e273f93fbd115d0816addc92144a6efbd40f49fe59f474d69e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAGOA1800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cdd971926de61dfb6374e2731ee1ae32d88efa5eba375d13e01704e21e65de. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAGOA1800209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa083d754ac700e579ee42e44fd557895b17b1a20447de8e9da2f1089ae4132f6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CAGOA1800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2453fefcd63920865278e26658bd3975e1a1b7a8961cf4a16a3a7a439222fd7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAGOA1800235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf329bdbeec28fb62b4466df08c89c81cf416d7a27a3b8aa5e98a0a31c420528. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b77d10372867bed8a29f574b7eb053b2fc4d3fd620395bed91442f21b6bff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAGOA1800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96354f97787526801e9932af765558c8ca40515173d007f0c81806cdb421c96f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAGOA1800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884796cfe5b2cef3f428a887e7ae9234d8876233b4ce045e5b5bc6c79fb0f3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7691deb5b07b91f277587e00b6a0d8595ab7ab4defb29cf95a481beb070fb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec957a2bc8ad11028f0d80b7b03dff849d3dba732aa87573cc04c523c0ed2e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ca5a87af88c5ca5b2f8583de884df52daa9f606088558ed854e7635ba2f445. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAGOA1800248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b0bd04f8c00cebf64b639e550c21d287d999f0f8f2f463941173fdc366d40e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1590460ff48f759d0d631b3ba222935b1e0ae92a5649633065ff7a8bf248f8be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb019c9961f9f095450f84bf76fc074514bba41e4eedbe037a9c259c1ebe240a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAGOA1800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf329bdbeec28fb62b4466df08c89c81cf416d7a27a3b8aa5e98a0a31c420528. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAGOA1800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070a7dac84bd4a68d754765614d4feb64f64077c7d50220e9cbb0a888fa5c85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b77d10372867bed8a29f574b7eb053b2fc4d3fd620395bed91442f21b6bff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96354f97787526801e9932af765558c8ca40515173d007f0c81806cdb421c96f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAGOA1800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884796cfe5b2cef3f428a887e7ae9234d8876233b4ce045e5b5bc6c79fb0f3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAGOA1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7691deb5b07b91f277587e00b6a0d8595ab7ab4defb29cf95a481beb070fb9. 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/CAGOA1800126.
On va feeler encore magané demain matin (acoustique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa6b549523a63e45b20f5c92a41b0e70d48af479c13732ad5dc3b3cc63dca0. 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/CAGOA1800258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676acee6aa780e3457a49b3acce285a8da76bba1165bfaa697aa614dc6fde746. 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/CAGOA1800259.