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 0xbdc6939a1963dabf261fdac65197dce46cf528a8c7b45fb7f71f7f798f1085ea. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02b1fdca-c41e-4da6-bb6e-0a6d38bd59d9.json and https://artists.proofprofile.net/proofs/artist/02b1fdca-c41e-4da6-bb6e-0a6d38bd59d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd5198d7b64ce440e5c272f0f255f852b9d5f95ea50ec2d2dbbe05306c1ae0a88. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USE831519744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d595d5b498cacc589ed3331ff0cea6ea4ff8db45f1211aebbd128e875173a9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USE831519749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f0de8fc788d27505cfaf7238134c26d2718944691c80929a63ee4459cd1293. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZ22B1810485.
Athletic Theme (From "Super Mario World")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9b503e46c2a4cdf450d77e01534ae941d549652166e9e0468eca7c1d1f37db. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZGWW2121149.
Stickerbush Symphony (From "Donkey Kong Country 2") [Cover]
Passing Breeze (From "Outrun") [Synth Cover]
Bosun Bill (From "Sea of Thieves") [Cover Versions]
Bonus Room Blitz (From "Donkey Kong Country") [Cover]
Forest Frenzy (From "Donkey Kong Country") [Cover]
Welcome to the Plains (From "Shadow of the Beast") [Cover]
Cranky's Theme (From "Donkey Kong Country") [Cover]
Hollow Knight (From "Hollow Knight") [Cover Version]
Simian Segue (From "Donkey Kong Country") [Cover]
Dr Wily Level 2 (From "Megaman 3") [Cover]
Intro Theme (From "The Last of Us Part II") [Cover Versions]
Vampire Killer (From "Castlevania") [Cover]
Main Theme (From "Puzzle Bobble") [Cover]
Title Theme (From "Metroid") [Cover Version]
Lost Woods (From "Zelda Ocarina of Time") [Cover]
Brinstar (From "Metroid") [Cover Version]
Zelda's Lullaby (From "The Legend of Zelda Ocarina of Time") [Cover Version]
Market Theme (From "Zelda Ocarina of Time") [Cover Version]
Upper Brinstar (From "Super Metroid") [Cover Version]
Green Hill Zone (From "Sonic the Hedgehog") [Cover Version]
Grogg Mayles (From "Sea of Thieves") [Cover]
Phendrana Drifts (From "Metroid Prime") [Cover Version]
Darkworld (From "Zelda a Link to the Past") [Cover Version]
Song of Storms (From "Zelda Ocarina of Time") [Cover Version]
Surface of SR388 (From "Metroid 2") [Cover Version]
The Desert Rocks (From "Turrican 2") [Cover Version]
Title Theme (From "Super Mario World") [Cover Version]
Traps (From "Turrican 2") [Cover Version]
The Great Bath (From "Turrican 2") [Cover Version]
Wandering the Plains (From "Super Mario Wold") [Cover Version]
Overworld Theme (From "Super Mario World") [Cover Version]
End Theme (From "Super Mario Wolrd") [Cover Version]
Magical Sound Shower ( From "Outrun") [Cover Version]
Last Wave ( From "Outrun") [Cover Version]
Minecraft ( From "Minecraft") [Cover Version]
Mind the Lemmings ( From "Lemmings") [Cover Version]
Rainbow Island ( From "Lemmings") [Cover Version]
Smile if you love Lemmings ( From "Lemmings") [Cover Version]
Ada's Theme ( From "Resident Evil 2") [Cover Version]
Camino a mi Amor ( From "Outrun") [Cover Version]