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 0x483b6ba3526aa532f0f6da850a72f5a285735564d2e21810be2b7d1f0c02df44. 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/23aef25f-087b-484d-a910-a1a4dfa5d250.json and https://artists.proofprofile.net/proofs/artist/23aef25f-087b-484d-a910-a1a4dfa5d250.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 0xb82496e9f36bd393296f92ac1dfe80e925d1b7a5daf878cb41d117fd6cf3d6f4. 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/QZZ8B2456811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426970dc4d6d2e3059e501d2d765fe8d048b2e1a3e009304372bc14439c7039c. 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/QZZ8B2456820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446c5fb9f9c52f9e9058196d43971d45932c4b3a9452313b3cbb57a3b6f21a73. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZZ8B2456822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680de1eed5a5fb0aab1f6471d6e1c312c4c9597b6cdd378e807d19af09d06711. 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/QZZ8B2456823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69c84def412af17043ed4bb7fc5487c92efd6b125dc13039c25a6dd0ca73ab1. 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/US7VG1839398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afb9fac1eefc9b8edca306473fe2133013ac24b19000c2ab987254047c12db4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BOYOS1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ebdd413b5d5df7a297ad913f9f5e2175cd6554783b0ee3e4510998850de4db. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:13:12Z), 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/BOYOS1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9c04e6f83274897ce17e990036d55af3501667bcc96426a69b4b0848f496a0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BOYOS1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4a731ba3a15d4d3f23160051af0d7b354587ab2eef976fa27fb4c9d9579569. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BOYOS1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed1263ed3cd79351fde55fca20896826bcc1668954cbee6895d6665b80e7785. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:41:13Z), 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/BOYOS1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d6cb81fb26179bfb93e38f73f678a50574a69991d7a8d0d2ad2ecb71affc9. 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/BOYOS1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf4b3eb26bf259196055ca3f4c2919f90f6079020e15c068c3c8e03f5028967. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BOYOS1800015.
Mix Vallegrandinos - Comarapeñita / La Patas Kjarkas / Amalaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e13c1dcccc0e3e750b13338cec518f0e4ece6f7caabf178f1023e91e13b0481. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:48:44Z), 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/QZZ8B2455805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8ca8e78856c978ff9005d85eac1a056206953289dcd75aa6a80c109885e851. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BOA081901201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddac11aa37a45825894802df1f36acf0d165f10d63f40614061b9f3b99aeaa8. 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/BOA081901205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5ac5391b7d94179dee9264352c9bd35639e05212b6d75d9a259813d2a49290. 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/BOA081901207.