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 0x410db3cb4a8851397833dada5931b10057272abd694e424b90370a9f914eba4e. 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/04e974d6-0e96-4862-96e0-2479ef720c6f.json and https://artists.proofprofile.net/proofs/artist/04e974d6-0e96-4862-96e0-2479ef720c6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
48 Hours (Bryan Jones & Hugh Cleal 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 0xe2d0bb97bcd0cfb5365b783a0369c5201d56f9bba212b542cf5027296a8ddebd. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMXJK1100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c35a67c666d05d8ec1798e19d86bb29c824704961522120fcb89b575e7570c. 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/QMXJK1100494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50d44d2d5f69c0498cabfc1d86eb2c8bce502fe3c28c97008e090306a243875. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QMXJK1100495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48ab1564bb309ae3679b4da6249b976933db0232d8208bdfafac4bf1133ddc. 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/QMXJK1100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec33438e4444223d5381081ad560b2783691c874470d420c3f7a8ebd57f39c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMXJK1100497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f683305dd6f018ac2dc4a2b510bd65350ffbfa8fa8be143d17ab5aedac0847. 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/QMXJK1100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95aa6557502b390abedac1725046d462c46d3e75869b2378d8f305ab3ffd7f2. 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/QMXJK1100499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0704628d2978e52454568b716c346e4bf849918df39778e6f3f8937969b2384. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QMXJK1100500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf952dfcd358da3792de8d6f0def7e6b779e46240771c982a0caccc8f968b6046. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMXJK1100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff782fa2bc084bb7cd38b4b62c1a9fbd7d3f6ca409a2661a152a7c83c78e4b53. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMXJK1100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aef95b149ffe797efd542a0114ddb0ded4aa33e808691cabca859e26138daa7. 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/QMXJK1100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb157f7c14288bd9e5f01be90efd24ba911d783141d61eb7e7f50794ed51cdc. 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/QMXJK1100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4547cd042b72aad84b2140343ba3eafc3f777aaaa0cafeddb9cbfa332162f68b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAHRE2000033.
Love today - Joey Negro Spirit of '79 Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af5659e83a40ba28e464a74d25ee96b69e161894516312a68b1fa9c00b4cca8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBPKF1300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd7196cde36fa04a3bd90804ade246bc4dfa83c3503e50bdf3118e70744abb1. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBPKF1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e22ed3d910a419d852a1e1481820407d99132e993444f44dc0006a18db86802. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ES8831821003.