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 0x7385ae0da15a0d9cba66b3d401d1f4de07452a460f93630a702693e3532564ba. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54301e8b-9415-41da-9763-7ecc87c8f48d.json and https://artists.proofprofile.net/proofs/artist/54301e8b-9415-41da-9763-7ecc87c8f48d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aquatic Ambience (From "Donkey Kong Country")
Aquatic Ambience (From "Donkey Kong Country") [Lofi 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 0x67610ee31278de1675f168ecde078d1bd13d02d6bdeba41037e81cb773d63529. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZGWX2209821.
Casino Night Zone (From "Sonic The Hedgehog 2")
Casino Night Zone (From "Sonic the Hedgehog 2") [Gospel Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4311d49baffeafc6035998c19d2b985df7d4389d771df87d5c6b16f1074c4a1a. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZGWX2251334.
Peace of Mind (Save Room) [From "Resident Evil"] [Ambient version]
Born Unto Trouble - Music From Red Dead Redemption
Koopa Troopa Beach (From "Mario Kart 64")
Koopa Troopa Beach (From "Mario Kart 64") [Lofi]
Kokiri Forest (From "The Legend of Zelda: Ocarina of Time") [Chillhop Version]
Kokiri Forest (From "The Legend of Zelda: Ocarina of Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ce76ff39e072bff10cf018b9683a4d98c9a0e85fc51830988d276286b33497. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZPJ32135469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fb8ce52552ad3e5ab491038ae96f119614bc50e308c7807db8299a49c54f29. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZPJ32135470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb9faf11dc6c1aba0754df42cb8f826d00e067f005e47586ca9decb2b9fce04. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32135472.
Escape From City 17: A Half-Life 2 Story
Night Comes (From "Pikmin") [Lofi version]
Character Select (From "Soul Calibur 2")
History Unfolds (Character Select) [From "Soul Calibur 2"] [Lofi]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355f6af9da64a46111df996a8198d765917cd603e100f75482b3136bdc537f1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPJ32328151.
World Clear Fanfare (From "Super Mario World")
World Clear Fanfare (From "Super Mario World") [Lofi]
Menu (From "Super Smash Bros. Melee") [Acoustic]
Lovely Gate 3 …for Egg Quarters - Drum & Bass (From "Sonic Adventure 2") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145a859060871a5908fceaef82989f24307df07444f77a90e772e8a5a0797ffa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZPJ32305131.