{"copyright_id":"0x265abed90eb2afe5c61a03eda76a487e3ae0a048f38e21935b32b6e3e7aa938e","name":"Michael Goldschlager","registered_at":"2026-06-20T16:29:22Z","symbol":"NIM1653682","token_address":"0xc0dbcf20cb76fd2745aac4dbfbcd7f733a788cf9","type":"artist","uuid":"b8f0cff8-3daf-4c4d-886b-93d7e2b20e11"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265abed90eb2afe5c61a03eda76a487e3ae0a048f38e21935b32b6e3e7aa938e. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8f0cff8-3daf-4c4d-886b-93d7e2b20e11.json and https://artists.proofprofile.net/proofs/artist/b8f0cff8-3daf-4c4d-886b-93d7e2b20e11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suite for Solo Cello No. 1 in G Major, BWV 1007: I. Prelude
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4041865f8cc05a404bea9a05a53c987d2c121b52101a223ba3ff86d1993c2a7. 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/AUAB01150671.
Suite for Solo Cello No. 1 in G Major, BWV 1007: V. Menuets I and II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420bc08458ef95324a197028e40757a81729231b7f71c9e67716fabbd59484b7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUAB01150675.
Suite for Solo Cello No. 3 in C Major, BWV 1009: IV. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63123ed2b09601da9256aa6c71746155ab5ac27a619d3fd8e4edf1c0e29c5530. 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/AUAB01150686.