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 0x4b5bfbe13f90406842052ff955da949a7b50dda7c2aac971a7a107ef95d23dd2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76d7a3b5-452e-46f9-b75d-4f8733b0040d.json and https://artists.proofprofile.net/proofs/artist/76d7a3b5-452e-46f9-b75d-4f8733b0040d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
BloopVille (Original Video Game Soundtrack)
Vanguard (Original Video Game Soundtrack)
ROBLOX Spring Event 2021 (Original Video Game Soundtrack)
Dusk (Original Game Soundtrack) [Opening Theme]
Anime Bloodline (Original Game Soundtrack)
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 0x3088bb1378ed35efe1ed4363ebaf584d8df9fefb8a74955017ba43c834502506. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:45Z), 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/QZHN62227638.
Anime Battle Simulator (Original Game Soundtrack)
State of Firestone (Main Menu) [Original Game Soundtrack]