right|thumb|260px|Schola Cantorum Basiliensis in 2012 The Schola Cantorum Basiliensis (SCB) is a music academy and research institution located in Basel, Switzerland, that focuses on early music and h
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x7c6554c4d1ec85ebc587047a17001c809463fd88c8e9eafd66b81fa8e14972ac. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa162338-1056-4d88-823e-77dcb5680311.json and https://artists.proofprofile.net/proofs/artist/fa162338-1056-4d88-823e-77dcb5680311.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maddalena ai piedi di Cristo: No. 35 Aria Maddalena "In lagrime stemprato il cor qui cade"
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x6b0e0ad4b27ce66a1ef3d8f7d1d6d5e787de41dfda868417d9bae574cb2867f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ149642070.
Maddalena ai piedi di Cristo: No. 47 Aria Maddalena, "Per il mar del pianto mio"
Orchestre de la Schola Cantorum Basiliensis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da3898c82b1545680a3ebb0d6c7081aef3d84f86628420ebf6e6be5ea3d6691. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FRZ149642190.
Maddalena ai piedi di Cristo: Maddalena ai piedi di Cristo: No. 35 Aria Maddalena "In lagrime stemprato il cor qui cade"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e0ad4b27ce66a1ef3d8f7d1d6d5e787de41dfda868417d9bae574cb2867f7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ149642070.