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 0xd49ec477efeda87a14f5bc5e2ba50497ff94980d59313e2f1afdf9cf4e218135. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b07c7451-ccc6-40f0-96fa-e0b5cc10a865.json and https://artists.proofprofile.net/proofs/artist/b07c7451-ccc6-40f0-96fa-e0b5cc10a865.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grandes Exitos de Julio Jaramillo en Piano
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 0x747ab2fd51c8ead55507dd1c417b67f71251ee76ee7abe8dd6d16628b51d2d8c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:12:51Z), 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/QM4TX2000870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd58d1240f802159a5bff360f1935aad56be6c2efbf8b90f9ab7897f7f84a50c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:32:27Z), 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/QM4TX2000879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a33a6aaa83de22daf9876b283942ced2f579b3ad8884d9ba7eb7f5815f692. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:26:13Z), 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/QM4TX2000878.
Súper Fiestero Vol.3 - Pa' Quito los 2 Grandes
Paco Godoy Piano Internacional Y La Filarmónica "Mozart"
Los Mágicos Sonidos del Organo Tubular de la Iglesia de la Compañía
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69753b3f062c4f06a8ac7111b6abbe940e26e24cbe50cdbc7d28a308ef1ddedf. 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/QM6MZ1539387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac4197e92835f5c9018b5e2c9fd93a38a575d6f3f89a5903d488ad8f4b397b1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:03:32Z), 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/QM6MZ1539390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cd7d5f9d0b55d49ccda9dc1f9ccd88fd1a95c1afc5f2a2d03efcf4b36380d5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM6MZ1539401.