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 0xb915e5ae60d66a6b04866243ee2650c3df973cb9c6caf78fdb60653cae2a524f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/639d5c95-8cf0-4344-9109-e9bd0823a882.json and https://artists.proofprofile.net/proofs/artist/639d5c95-8cf0-4344-9109-e9bd0823a882.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Solo (Live at Sesc Vila Mariana, São Paulo, 27 Nov 2009)
Marcus Wiberg, Celio Barros, Jo​ã​o Gabriel Fideles
Ao Sabor Do Vento (Variations on “lendas Brasileiras” by Guinga)
The Journey (Inspired by Poucha Dass, From François Rabbath)
Mergulho (feat. Jan Weber & Mauricio Mirá)
Bip, Bip (feat. Jan Weber & Mauricio Mirá)
Quase Bonito (feat. Jan Weber & Mauricio Mirá)
Fjellet (feat. Jan Weber & Mauricio Mirá)
Monstros Marinhos (feat. Jan Weber & Mauricio Mirá)
Tornado (feat. Jan Weber & Mauricio Mirá)
Manami (feat. Jan Weber & Mauricio Mirá)
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 0x444f50f9e5fb15c51950174f91b42c33f5924cf08c742a840faf003613fe59a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NODS72404010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea11ce23fcc15c195ddf2fe81eee9564a0e469beeb71bf4516ebc64c72227f4b. 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/NODS72302010.