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 0xb09e8fb64a1f39dd3387b31446cdbe9cf823e6d3a7e783edd3e060efd7fb730a. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9c41b93-f67b-4ad5-9f03-ed2a42cade37.json and https://artists.proofprofile.net/proofs/artist/b9c41b93-f67b-4ad5-9f03-ed2a42cade37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Merry-Go-Round of Life (From “Howl`s Moving Castle”) [Music Box Version]
Merry-Go-Round of Life (From “Howl`s Moving Castle”) - Music Box Version
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 0xb6ab85d5f154f3d05c6cc326138c5f4ce68a1c2f1291de08b46beff369c97d25. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:31Z), 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/QZPJ32192551.
Naruto Main Theme (Gramophone Music Box Version)
Key (From “Minecraft”) [Gramophone Music Box]
Kamado Tanjirou no Uta (From "Demon Slayer") [Gramophone Music Box]
Subwoofer Lullaby (From "Minecraft") [Gramophone Music Box]
Can You Feel The Love Tonight (Music Box Lullaby)
Moonlight Sonata No. 14 (Music Box Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2923c8797ac54e3dcca836c7c1f4b7478b016c3bfb11e37a7408de1e4464d001. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZPJ32309919.