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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec44c6a1c26a03c10813e950089596df7f95fea8442d542f8bf4f6bdbc41799. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b933d1e8-8e81-45fa-a5e1-93a4433c1136.json and https://artists.proofprofile.net/proofs/artist/b933d1e8-8e81-45fa-a5e1-93a4433c1136.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Not An Angry Guitar (Original Game Soundtrack)
Drums of Hattin (Original Game Soundtrack)
Generic Videogame Music (Original Game Soundtrack)
It's Minecraft My Dudes (Original Game Soundtrack)
Spooky Scary Uncle Gary (Halloween Special)
Halloween (Original Motion Picture Soundtrack)
Mariachi Orchestra (Original Motion Picture Soundtrack)
Carnaval De Paris (FIFA World Cup Chant Anthem) [Epic Bagpipes Cinematic Version]
Carnaval De Paris (World Cup Chant Anthem) [MINOR VERSION - Epic Orchestral Hybrid Bagpipes]
Johnny I Hardly Knew Ya (Epic Orchestral Classical Version)
Gangsta's Paradise (Epic Orchestral Hybrid Version)
Gangsta's Paradise - Epic Orchestral Hybrid 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b88b25190fe71871c11bf07db7a3091f0490a49fbda40dbfdfce3cbf2f217. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6F2320447.
Grass Skirt Chase (Epic Spongebob Music Cover)
Outer Wilds (Original Game Soundtrack) [Orchestral Version]
Avatar: The Last Airbender Theme (Epic Hybrid Orchestral Version)