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 0xb6e2b2f0c122e5caf89c38284c5e98ab8993ed3eda6879094a9327e970622d2c. 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/a337ebf6-67a7-42c3-8c73-8632e34b8bc7.json and https://artists.proofprofile.net/proofs/artist/a337ebf6-67a7-42c3-8c73-8632e34b8bc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heaven - Like An Angel - tracey brakes Remix
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 0xb74c3ad72bfda371d317cc838239a4f84806edf9179fd0a1121328a812159998. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX452228695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b2d60e5c3854f331cc1458fc29e23f065c82ca7ba632ddfd6ba93183dad6be. 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/FRX452228696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4af81e2f0f104e5f8e4c90e8d37154c4657eb2a27429a853e16a732497d70b. 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/QZNMZ2266601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3145b1f48eccf4437253977334404c76f4bbbd58007c95abe00130fe9b37041. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTRX2352904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5372a2475724a2564c27127dabc189671dbe0ca92be0d9aaafb972f79ea648e7. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZWDE2399695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16daa8e4b28f6e878f978f2aa0da7a3721bae14cc8772faca1178d1a70d6b4d5. 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/USLZJ2481761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b666aca555d12fb1e3b1d2777b3f9b04190a65082db8f2c249b5e8b03dfa5a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTRX2495179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d2717d04accb63cef2ef4a594bceea3b9309fdeb530b346a263980c918067a. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZTRX2495189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116013a5b7e2659c26e8bae7217662d5f514f248408416f52439ba4785da7bc6. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZTRX2495198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc167ba49dc051290d2e5fa58b0e9dd49c7660f40504cd434c31c16a876f72f22. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTV32331676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba658d1286cfb354b8ce83561077339952e925097cf7f8c547c109d42963632d. 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/QZ5FN2461868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16daa8e4b28f6e878f978f2aa0da7a3721bae14cc8772faca1178d1a70d6b4d5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USLZJ2481761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7483bebed593cdb4a42c38f793f427524050fff8db66566231a5ab73af38c8. 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/QZPLR2437375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec73d91999a8891c56921ffcbef5782b5de61d7748444dac3937ef8ef521186. 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/QZHNA2203448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d286efdabcb32439183237b75dd3b68bdf8a2b72235735bf040cd80f950dca7. 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/QZHNA2203449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165d9f65981734a97e0aa6bf6f2e8c18fa78d817c9cc9355a759ff22e6d8a85f. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QZK6N2154780.