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 0xe963512dc9ab6583eaa2f3a0d6e96586add14f07255a3d7c2600bd1b975ee02a. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd931bd3-5879-4f16-9a51-e0a54f4fc2c9.json and https://artists.proofprofile.net/proofs/artist/bd931bd3-5879-4f16-9a51-e0a54f4fc2c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Only Live Once (English Cover) [From "Yuri!!! on Ice"]
Mysterious Messenger (From "Mystic Messenger") [Full English Acoustic Version]
Mysterious Messenger (From "Mystic Messenger") - Full English Acoustic 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 0xc8bf5ff0f3ac98939c40c3e8a2483662e318536355f5d1c44abedcfd832c5be7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ4JJ1686462.
Can't Take My Eyes Off You (Parody from "Yuri!!! on ICE")
You Only Live Once (From "Yuri!!! on ICE)