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 0x517828b982aa3edfc0da33c8f6c889b89bb473a2278494c3f74851f90e74f3c2. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2996f393-eedb-4863-ad38-5093dd0a6444.json and https://artists.proofprofile.net/proofs/artist/2996f393-eedb-4863-ad38-5093dd0a6444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nooit meer slapen - Live at Lokale Helden 2022
Vreugdevuren - Version with Keys - 2023 Remaster
Nooit meer slapen - Live - 2023 Remaster
't Valt best wel mee vandaag - 2023 Remaster
Achter het gordijn - Early version - 2023 Remaster
Beeldspraak (Ode aan The Tragically Hip) - 2024 Remaster
Vliegend Wild (25th Anniversary Remaster Edition) [2025 Remaster]
Ik loop maar door (Systeem) - 2025 Remaster
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 0x681551465d6e7bd84177406e4a7be92fcdb74e831916041c329ac7033b4dcb4b. 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/QZZ7R2510525.