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 0x8368fe86e81177b95f8ab92d725f952fdee00e4a85a02f4b82dc224742f25a7d. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/417d2755-e042-4155-b68c-328b21b6e024.json and https://artists.proofprofile.net/proofs/artist/417d2755-e042-4155-b68c-328b21b6e024.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aš Atsiprašau, Atleisk Man, Ačiū Tau, Aš Tave Myliu
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 0x8dd94e67916203a4fc79d5e07acf11dc47a4a769a8e6517ad0ec40745552543d. 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/QZTBB2452462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9acc7d96c47216edd19fe08092aba5f2d49e381fc0ff5b2ec76775d3800dcb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:27Z), 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/QZWFR2540052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd5c282e0d738512c19b308c654d29a855dd3736eded5b0b56af2d974c07fb6. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:28:17Z), 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/QZWFQ2526939.