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 0x30f44651e3de3dcbebc08dffaaa13275c854c713cf7377b297c2b7348e2e8fa2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1ae6781-999e-419e-836d-09c1242fb96f.json and https://artists.proofprofile.net/proofs/artist/b1ae6781-999e-419e-836d-09c1242fb96f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dallas - Giuseppe Favia Tech's Chordz Re-Interpretation Mix
Burning - Stefano Parenti & Etwas (IT) Remix
Horizonts - Alfrenk, Giancarlo Zara 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 → 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 0x267902d9280e7e7d0c4e540b81da85d4a6410f7d3d0b74ac99e5bb91f2069166. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR96X1944282.
Sonar Barcelona 2018 (Compiled By Lexlay)
Panorama #1 (Compiled & Mixed by Mike Scot)