Die Wiener Sängerknaben Conducted By Xaver Meyer
{"copyright_id":"0x3a7078dfce9072952630f5dbc510a91e8456cc39ab9fe2344a91b3d026694ebe","name":"Die Wiener Sängerknaben Conducted By Xaver Meyer","registered_at":"2026-06-20T16:29:50Z","symbol":"NIM1653795","token_address":"0x05c207e904ebb17689bb5c8b5c7189bc552dd3e8","type":"artist","uuid":"b8f879b4-936e-443c-afc9-1bafac6cd737"}
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 0x3a7078dfce9072952630f5dbc510a91e8456cc39ab9fe2344a91b3d026694ebe. 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/b8f879b4-936e-443c-afc9-1bafac6cd737.json and https://artists.proofprofile.net/proofs/artist/b8f879b4-936e-443c-afc9-1bafac6cd737.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Magic Christmas Carols (Original Recordings)
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 0x0af9a2bf45160295f3417c4459fc7f6a01a3fe80ce2fd333e68adedb823c8f64. 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/GBURZ1602229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af9a2bf45160295f3417c4459fc7f6a01a3fe80ce2fd333e68adedb823c8f64. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBURZ1602229.