{"copyright_id":"0xe64da893f68a44d6f8ec68f592c7658bedeebcfb941cda269563dc47bada1638","name":"Schola Cantorum Bruxelliensis","registered_at":"2026-06-20T17:32:47Z","symbol":"NIM1667026","token_address":"0xdeac0ac8df81d2280e0c63d8c0746d5b2d921a5c","type":"artist","uuid":"bc833400-fa00-4db4-a527-f4daf766e0e2"}
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 0xe64da893f68a44d6f8ec68f592c7658bedeebcfb941cda269563dc47bada1638. 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/bc833400-fa00-4db4-a527-f4daf766e0e2.json and https://artists.proofprofile.net/proofs/artist/bc833400-fa00-4db4-a527-f4daf766e0e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schütz: Geistliche Chormusik, Op. 11: No. 16, Ein Kind ist uns geboren, SWV 384
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 0xcb0e2a5309b2a6dcb4d7a66a6584a658f3a5fe61f27ab05f910dc02439bf70b2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ208305800.