1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e702833cb09bda6e0ff1dd8c9d83827a6d2a630eec5f2d48502f11e2b7478f5. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba5bf17a-c4b9-4ad7-9ec8-e48ecc843d57.json and https://artists.proofprofile.net/proofs/artist/ba5bf17a-c4b9-4ad7-9ec8-e48ecc843d57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Things You See (When You Haven't Got Your Gun)
For Evans Sake (A tribute to Bill Evans)
Reflections: Live at the Bath International Music Festival
Jazz at Radio Rai: Gordon Beck Live (Via Asiago 10)
Three Works For Jazz Soloists & Symphony Orchestra
Bird & Bela In B Flat: 2nd & 3rd Movement
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebae091baa75a43cf7ae059275cc7fc4d64e424911e75f91c0b02673571d0db0. 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/USA560663492.