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 0xd0be51871e7d3f46ce4f495528fba67ec41476fcd522a62b805975b0fd06dd2e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e76720f7-e86b-4903-b215-a3671dcff91a.json and https://artists.proofprofile.net/proofs/artist/e76720f7-e86b-4903-b215-a3671dcff91a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Phantom Breaker: Omnia (Promotional Soundtrack)
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 0xc50a5c9aac49a1c3e1c3977ab618e367c8116f2e09adbc37c802edb8952cc931. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:49Z), 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/QZDA82201875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf22df52b9cd54be9dbde8f07bc6fa69679ddfb0706c9a9982290e29a89772a1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZDA82201876.
Phantom Breaker: Omnia (Official Video Game Soundtrack)
GUILTY GEAR -STRIVE- ORIGINAL SOUNDTRACK Necessary Discrepancy (1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750a4cf4ba5c2c8c64def82dac60706cccd64056d095055c5281180b1abfcbab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCJPR2262419.