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 0x5dc01d6a3528bb55db06b0956bae282b7db9915bc79a8f72a24385f05a8aadac. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c21f330d-62a9-467a-a2b2-3c758a5a920b.json and https://artists.proofprofile.net/proofs/artist/c21f330d-62a9-467a-a2b2-3c758a5a920b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Merry go Round (from "Howl's Moving Castle")
This Fire (From "Cyberpunk: Edgerunners")
Peaches (From ¨The Super Mario Bros. Movie¨ Japanese Cover)
Touch You (From "Yarichin Bitch Club" - Spanish Cover)
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 0x41f3c152b8e1d6df500dd3098b5b33bb03f21a2e1dabba7d4463e23da16d3cda. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QZPJ32264558.
I'm Just Your Problem (Pop Punk Version)
Bling-Bang-Bang-Born (From Mashle: Magic and Muscles )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56631e4218dd0b65997e2c870f9ba4b3206cc396514d2bba82674d653b08fa96. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32332889.