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 0xfb1392cf40b62830a9aff735fb234050e47a17fba8f177cee7e8ce12dca97212. Chain 2 (Bitcoin): anchored in block 953722 (2026-06-15T01:21:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b27fb5e-64bb-4bea-8c8e-33b59fdd994a.json and https://artists.proofprofile.net/proofs/artist/8b27fb5e-64bb-4bea-8c8e-33b59fdd994a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ya Sabi Kolla Beni - Turkish Orthodox Hymn
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 0x17421bd88bb3d0e40179c9e3eb318889264f21ab66864779321cf1992a648db7. 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/QZPJ32442937.
My Soul Magnifies The Lord - Russian Orthodox Hymn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d472071fcd904f1f0933dd3eeb6c2e1750e0918bbcac5c2245b65397701a6fe. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZPJ32442939.
Hvala Ti, Gospoda - Serbian Orthodox Hymn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a37f6aaa750730eef2e9bcf6b09ef0fb65b883a7ab042f2d9305eabc56a639. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:29:49Z), 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/QZPJ32442940.