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 0xb561447e5aeac1fe36438c8eb434af79a9cbadd97036b2c6a4f92571fc784081. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20a81c3c-8d12-478d-8101-b63efa241c51.json and https://artists.proofprofile.net/proofs/artist/20a81c3c-8d12-478d-8101-b63efa241c51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best of Video Game Music Classics (Nintendo NES Chiptunes)
Best of Video Game Music Classics (Sega Master System Chiptunes)
Best of Video Game Music Classics (Commodore C64 Chiptunes)
Best of Video Game Music Classics (Yamaha OPL FM Chiptunes)
Best of Video Game Music Classics (Atari St & Zx Spectrum Chiptunes)
Best of Video Game Music Classics (Sega Mega Drive & Genesis Chiptunes)
Best of Video Game Music Classics (Commodore Amiga Module Sounds)
Best of Video Game Music Classics (Game Boy Chiptunes)
Best of Video Game Music Classics (Super Nintendo & SNES Songs)
Best of Video Game Music Classics (Neo Geo Songs)
Best of Video Game Music Classics (Nintendo 64 & N64 Songs)
Game Soundtrack Remakes, Vol. 2 (Donkey Kong Land)
Game Soundtrack Remakes, Vol. 3 (Donkey Kong 64)
Game Soundtrack Remakes, Vol. 1 (Donkey Kong Country)
Game Soundtrack Remakes, Vol.4 (Sonic the Hedgehog 1-3)
Game Soundtrack Remakes, Vol.6 (Knuckles' Chaotix & Sonic the Hedgehog Spinball)
Sonic & Knuckles - Act 2 Boss - Robotnik - Karaoke 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 0x1e737bae44fd6c8f96cb194ad48efe63da3816bd9ff56edc04dda5e68a741250. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:52:11Z), 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/DEXO52415325.
Sonic & Knuckles - Knuckles Theme - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d84cebd5172afa1bb5cadce76e793b5b79e35467393ad41a6a8a1e8ff0d97c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXO52415328.