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 0x07213fd38455973c5ae501a73ba4d043a7444c96eae8ab1daa8d16fbe9358f23. 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/b702faea-8f2e-42ab-b8e9-52611e3852b6.json and https://artists.proofprofile.net/proofs/artist/b702faea-8f2e-42ab-b8e9-52611e3852b6.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 0xf5cc7926a68cce63eb679b6880531c6a3deadfbe9fedf6534674bb267ced28f7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:41:17Z), 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/BRRPG0300631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae371d068606c31d97ae5992e964956f58a6ff21e2207d199aa8dc0fba8771c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:38Z), 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/BRRPG0300632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec4785e611cbd817c167217bb816d7c073a23831c024d90be23560a6c1d5f4a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRRPG0300634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac372211968086b0b1d077fc5e2c0122018a43bfd42806230177f05824b7c9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRRPG0300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4146e415838bab3d9eb26307bc3eaa3c7ce694a90dd25beb68efb4b422213627. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:43Z), 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/BRRPG0300587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde3c4a2f2b20b988180ba5b00237c1a6bc2a82df46a77783b3a85e728d6a3b. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRRPG0300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79b6880a2540f70741588b76bf06d429c66ae2dbc4215229b2d975fb6832f52. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRRPG0300590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03046ced9170d79106261e150af7bf0e28f52b587a2c85070dff95efe7d87aed. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BRRPG0300593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5688a790cbedab519d6e21b4a942c758f4a2b652f7dd30113430e9ffd63fdb71. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/BRRPG0300595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef6b6dfdd9b03f7b496cc0d138df2406da0430a1d8eae89cf5a846e22e9a40b. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/BRRPG0300598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f370d0ecd6ee4530df8436be7a7ee643a39560d8661c9e27c57c1d2f57ee85. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRRPG0300599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c29b237901d76f34be42f2d4ba9100aeba895191bee27ffbdce5985fdca0a46. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRRPG0300600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a6e714a5898bd71f9d0fe216da3b297f6f779ef7fd28bd8e08ae5502ae4f14. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRRPG0300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5f2d9ebe0c48b1a61cd39e409ca6677e48ced78f31336e8154e0a9412ac4b6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BRRPG0300604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1831599e53fa72599d604b9025aea2a61f2b6fb9acb3ae11634dda2752e3c326. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRRPG0300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a368cd2b51edb98e50d30698851dd5e69cf5d912067f040b43a5f2f29efde. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/BRG5Z2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646bf868e758c08a27c582eb3bb520e4ef2d36f9ffc3e394b7d03c4fd005c2dc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRG5Z1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8af9dca3387e90608c962727a03b14c8fe44afd0ac304af3163216d40cc5519. 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/BRRPG0300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cd56f1b0719f6ef686f1affb67c22d5df530e2770cfb0d699f093004d126ae. 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/BRRPG0300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bdbeac31c7d670c9ffd50942864dca960b2341c5169ab6a92b843d7a9013fa. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/BRRPG0300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c9a178420539a2fae1841425b9c5375c56f6ab8561dfba26ac0d6acf193bea. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/BRRPG0300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4f4cf4712e2445a311965f4eeb019b3affdd7fda2b9addffabaf62b6d56515. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BRRPG0300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7184d49300224464d5bcd4f78e322c3a81c35d78f4261e8d3bc7528703f9955a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:57Z), 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/BRRPG0300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ed6591a63d9c1a598b221e8557f91d7420f2e562997a1ed2543ea73534cb74. 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/BRRPG0300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534bae54bc2ab2f9f69102fe14d280e4fdeca873c145be9e11b5c3380f53e97b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:48Z), 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/BRG5Z1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac116c887d6e546d1ed19542dc0361f09d99cf4f30888ff74084727b94f0c78. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:30:31Z), 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/BRRPG0600313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a7132ee46f557cd2f4a91b44775ee7fc22ae4f46b33a4bfbb4a945d1c52e18. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRG5Z1500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4477ba0cfef2c3fdf5c3c5e9779df28660934d5490d43573bab2800cfeb768. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BRG5Z0800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de4f5999404060554518b113eb82dd6c444cce48a0c8e0eb312cf1e28cf6d3f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:48:33Z), 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/BCGI02200011.