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 0x7679218eb61c926d28773a9589a8c9f99865c86fd281afcbe495bd6f057e880a. 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/f23cecd3-6460-416c-8a6e-8e37f5fdbaf8.json and https://artists.proofprofile.net/proofs/artist/f23cecd3-6460-416c-8a6e-8e37f5fdbaf8.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 0xb16af30580454c6e2e4176aea1825fb8a1db3287bc7039c5a5c1f743b471a736. 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/GBKQU1953944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d57a018a88ce2596419e2528cffdbe96aea4860c64462bb5b2050c0116ea89. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBKQU1953945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddc58c36063564f848748ceccb7bed67bb942be4c5041f4703f01a34ec97f01. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU1953946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60932087bc5c760a08e913eebdf711690a86228c3cacdf86bf7b5b37ccb5ee86. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/GBKQU2159749.
It's Midnight (Eugene Toale's 'Sandra Decides' Remix)
Slowww (Mercan Dede & Dexter Crowe Remix)
Slowww - Mercan Dede & Dexter Crowe Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4d79614ec28d1cda991e886df06e499034dd44c63ee4ac43a9660599636790. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBLV62110638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d4c643b0220f52489e9657120ea3268c54229139d4058aca420c09b0ee4958. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBKQU2340419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c38c0a1bfeb3a65a5a502e11864f514f0d3a800430555bdd11222608dc5af9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU2340418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d4c643b0220f52489e9657120ea3268c54229139d4058aca420c09b0ee4958. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU2340419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c38c0a1bfeb3a65a5a502e11864f514f0d3a800430555bdd11222608dc5af9. 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/GBKQU2340418.
Exceleranda Ultima (Jero Nougues Club Mix)
Exceleranda Ultima - Jero Nougues Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95e63bb4bb86edbd6477b46b701af45b8bf80042d5fedc5654e963cc81449c1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2538689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2db0698b2e32cc1a964aa494397403ad917c165689f749f256daf5a46846103. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/US83Z2538686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe24f5fd81f2c33c631fa23bb7798025806a925b1ee5ea3ddba20c097bd8706. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ5FN2279462.
Jungle Dance - MoM & Evan Hatfield Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b06572f08892a420a3b8acb91302d37610ced427c8c54addb6a17e11ebc3e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z2241676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3983882f741b080704f97dc2fab52862844c40053e5229847b171aedd72d43e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z2485102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3983882f741b080704f97dc2fab52862844c40053e5229847b171aedd72d43e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2485102.