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 0xe051302b2f56738a9be61c4aa71bd38a844d84ffab3a0f879eaa40014604b619. 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/51e3f3ab-35a2-4378-b3d9-ea30b39e16ba.json and https://artists.proofprofile.net/proofs/artist/51e3f3ab-35a2-4378-b3d9-ea30b39e16ba.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 0xbd2774395d28fa1eee55fb62f34a7476d32ba08854f062d31fdeca538e7a0eaa. 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/GBAJE6900259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e6f9580ae6e797b27118aa4d944332372662cfc07fed3e30100883d89c35dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM70900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cacff1670e029bee362d2f0e8eeb01b12a3e4767da3a74453bfac56559a2be9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAJE6900726.
Yours and Mine (feat. Charles Walker) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86876ba4494feb704d57f2f4b4eb71b40c1736d174102ceb7f450f240f061541. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:12:19Z), 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/USEAB0700001.
What's It Gonna Be? (feat. Charles Walker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021c048be5e9ec5328c8190724da83d644b52be5cc87d339ecd821c36ab7fc8a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USEAB0700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae05631ab108405b1be7dbd5428c62006898091fdc21d2316a9564a8baa5dcd. 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/QMBZ92249150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27b440d0765ed33e7a2bf393f30c89b49ef562c98ecdbf184af55d39195a6e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QMBZ92249159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67ad5060a08cac04609c24ba0202a55a47e3464e1475cc4f9b63cfd01808ecb. 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/QMBZ92249138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96682d6bd2a2dc0047ae3b8b6d8b8bbca000c9f265c891b56646ac12ae619a48. 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/QMBZ92249125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e823bea7d988c6ca3d7e31ce06e756925d1ecfef6bc34c6f282cf026c6a4b9. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMBZ92249126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dce09856843b17b731576e19a1e0586cf14ad4e5cf4926d271f02df8a308927. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMBZ92249127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6892edd3a032d8b2c3c7c23b06544e2dcfccb7acb18368796f25de4067f9c759. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QMBZ92249128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87524512c29616e44f11745dec87729b768b69d3c00c58e1c89e693cf697ec55. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMBZ92249139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c308bfeb6ed65862bd82ea947bceb593593c9dda717d8efffaaa8b231ffc89. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMBZ92249130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bfd1463785ef41b073322418b91988c37fd4c0e5723b8ccee08df40e7223ae. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM4TW2391257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd79c1e4904f7a9808de69dd0b24cdf21c05ad99c61949e806ed8dc141aa43. 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/GBAJE7000458.