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 0x99425c50177f899105d931b3fbf5c222fc61edcdd5e4f9ea721c180d9872340b. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f02bfb4d-4a65-4267-bc6a-de2677f7400d.json and https://artists.proofprofile.net/proofs/artist/f02bfb4d-4a65-4267-bc6a-de2677f7400d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tanzania - Patrick Kunkel & Dirk Redmer Remix
Kampala - Andre Butano & Demian Muller Remix
Papillon - Dan Caster & Rene Bourgeois Remix
A Sweet Guy - Tripmastaz Hypno Thug Reflip
Taronga - Andre Butano & Demian Müller Remix
Attitude - Audio KoDe, Angelo Raguso, FAW9 Remix
Turn Down for What (Inc. RMX by Definition)
Hangover - FAW9 & Camilo Valderrama Remix
Paranoid - Thomas Gandey feat. Vanita Remix
Fall Into the Sky - Philipp Kempnich Remix
Spaceship - Mathias Schaffhauser's Users Countdown Remix
Spaceship - Flo MRZDK Out Of Space Remix
Jack The House - More Than Friends Remix
Jack The House - More Than Friends Extended Remix
Weird Situation - Christian Burkhardt 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 0x1b7e82940a88172f2f735dfc0da869c96a094702fde81f9698d44575cae5b006. 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/CA5KR2221365.
Voltaire Music Pres. The Amsterdam Diary 2023