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 0x410ca9d46ee5cccf911ac28bd09855748d3b78ab2f392c11fac988dc5e675415. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccf1405b-573f-4119-851d-bed2baeff47e.json and https://artists.proofprofile.net/proofs/artist/ccf1405b-573f-4119-851d-bed2baeff47e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shallow (The Voice Australia 2019 Performance / Live)
Shallow - The Voice Australia 2019 Performance / Live
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 0xbfc44a89f272c7a0d5951bc140b920df25ffe7400f301ba71d256f189448440b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:35:57Z), 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/AUUM71900377.
Papa Don't Preach (The Voice Australia 2019 Performance / Live)
Alone (The Voice Australia 2019 Performance / Live)
Alone - The Voice Australia 2019 Performance / Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a31e45a8075aa88a9d4f955874f1b5a868d89d243d912675d2ec36a8f20bfe. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:40:40Z), 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/AUUM71900617.
California Dreamin' (The Voice Australia 2019 Performance / Live)
Jolene (The Voice Australia 2019 Performance / Live)