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 0xb793affa575382a3e28fe2c5e57a1f79c09741507e5c615d427bcd989aeceb02. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d580dc3-9561-49ab-90a1-ebfd4a0290c4.json and https://artists.proofprofile.net/proofs/artist/6d580dc3-9561-49ab-90a1-ebfd4a0290c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lo Mejor De Las Baladas Rockeras, Vol. 5
Lo Mejor De Las Baladas Rockeras, Vol. 2
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 0x83e9d78912ced99f6b96ed390ed01cf7b9aed981a9c60edcf6425f868145d794. 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/ARJ271616737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9518cac1540f456cc6820094e5a16e522432c49d032f12048b27cc53f94188e6. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/ARJ271616743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838e90db3bfe9dd914f8d3e816ddf64a44e43b70729a0741e4ba480627d2c900. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ARJ271616744.
Lo Mejor De Las Baladas Rockeras, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b1de2b9b0e5b4f277acbadaaa5a1026c1b4587dd5d2abe31885354bb372563. 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/ARJ271616725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec36359b231437a7f73b3b24ab469336252e763b1dc6f5d0cb57634745093fe. 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/ARJ271616726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708b3dca1675b067b7034964d5282a4e55da412a45a5d5dda5ec6050ac04285b. 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/ARJ271616728.
Lo Mejor De Las Baladas Rockeras, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03fae129f2f13b7dce6c35da7f3cb487d20d7a042c008b29ae92f4de20a55ed. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/ARJ271616749.
Lo Mejor De Las Baladas Rockeras, Vol. 4