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 0x9e396f2f5d89d71700add2fd72ddc37948a0c9740b2617d702a5a4d6fd93172a. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30d78a58-8631-4d05-9f45-599dd8d67f3c.json and https://artists.proofprofile.net/proofs/artist/30d78a58-8631-4d05-9f45-599dd8d67f3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soundtracks to an Imaginary Movie Volume One
Soundtracks to an Imaginary Movie Volume Two
Soundtracks to an Imaginary Movie Volume Three
Soundtracks to an Imaginary Movie, Vol. 4
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 0xd4a9eb296c49628e029eafebc3c2d2991652788bef15a696ecacb704441d1664. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNJW2519757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8eb6ff90f3d7d76f92d8baf5a57e2dfa165c88ca721cdf7521c418ce31844c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFL2523181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1f85852189384cad7bd51280909ec9f4605d137f9794aa147b33323dedfc7b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:45:42Z), 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/QZWFL2577839.