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 0x71ddf6f9a5e72031a709fde3568cd2536ff1dc128c1da03788d41bcf5242486e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c346c7e-d283-4b16-b6e6-29f087b4ed3b.json and https://artists.proofprofile.net/proofs/artist/7c346c7e-d283-4b16-b6e6-29f087b4ed3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Miss You (Megalo Strike Back Hard Rock Cover)
The Merc With The Moves (MixCalibur's Theme)
The Devious Dastard Adventures of Itazura Akuma Web Comic Original Soundtrack, Vol. 1 (Fate's Wish)
Welcome to the Underworld (From "Fate's Wish")
Friday Night Funkin': V.S. MixCalibur Original Soundtrack
Fate's Wish Salvation Original Soundtrack, Vol. 1 (Salvation Team Themes Anime Concept)
JOJOLands (Jodio Joestar's Theme Fan Made)
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 0x106f849de29985bc09f4e053a6896e6d79149bce551c6961e6119c560f8438c0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:19:23Z), 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/QZDA72356659.
The JOJOLands (Dragona Joestar's Theme Fan Made)
The JoJoLands, Vol. 1 (JoJo's Bizarre Adventure Part 9 Unofficial Anime Soundtrack)