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 0x51e51f51e5416abea81d3cbb0d1adc41103383ee387059d390b0360b5719cf99. 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/a90df6fd-b6a5-40f0-9496-c9120570ba5c.json and https://artists.proofprofile.net/proofs/artist/a90df6fd-b6a5-40f0-9496-c9120570ba5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best of Future Garage Producer: Alivvve
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 0x0d4e826f8b1bf35a6f9692eae9240b09fbc46e3557e3902189bf435911917aaf. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QMPKX1831338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d3fadff839d67ec67eff2b8927c1d9e32c7edc99fabbce18d16652852c578d. 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/QM42K1868366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39286f06567cd4d636998de9923d465d86688f8b812187a79becb371c8d6afa. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZBRF1816203.
Collection of the Best Tracks From: Alivvve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc780477cd3e18d8e2e9e087edaea8cc25ffaa6f6a73f68c60d004a7fe53a764. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZDA71859453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55559cb931bdd4ccf76e37f43b11e40ae12f6e22552a6827d00e5abae4cd94. 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/QM2PV1834185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9221423f53b44760807a9864ff691a5e57f53862d3e39822bcf569e649754903. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA51913051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab565c996c4d298a993044033d6bff9de8594ba45b9a50e8594eff13ac729c1. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZES51952075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b09ebbbc12424bbfd4054269f4a9fd7941ad854a98aad5db255c2fc4b2d9809. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLFP2529378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4aa809063f29c95032f334b56971b579ea4c95d97eb38124d7eaf47e8bf2db. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/GBLFP2568495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6315ba17b0e95f1d11371ad7098d39087ecf0816d16c8f0d166461d2c91fc443. 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/GBMA22521398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da8eeb77c511742a5fd918861a478c4317f4b7b3c401b7189eeaaa0ea2ee266. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GX53U2562801.