Violin Ensemble of the Bolshoi Theatre, Moscow
{"copyright_id":"0x1f430fc8edd7abf513e31d0c614eb55a20295bbd5c71ed5789f313774210ccae","name":"Violin Ensemble of the Bolshoi Theatre, Moscow","registered_at":"2026-06-14T11:36:33Z","symbol":"NIM0440627","token_address":"0x485ec85c5f8bbc30f2c99722fdea052e77c1603e","type":"artist","uuid":"434ee9ea-66ed-4610-b7ae-968e5f57dc38"}
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 0x1f430fc8edd7abf513e31d0c614eb55a20295bbd5c71ed5789f313774210ccae. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/434ee9ea-66ed-4610-b7ae-968e5f57dc38.json and https://artists.proofprofile.net/proofs/artist/434ee9ea-66ed-4610-b7ae-968e5f57dc38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Tale Of Tsar Saltan - Arr. Grigory Feygin: The Flight Of The Bumble-Bee
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 0x403509c891cee89c453c6238f3b90f982933f77162b496276d23f4ab9eeaf3a3. 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/DEF057202280.
The Tale of Tsar Saltan: Flight of the Bumblebee (Arr. Feygin for String Orchestra)
The Flight of the Bumblebee - Spring Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403509c891cee89c453c6238f3b90f982933f77162b496276d23f4ab9eeaf3a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEF057202280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403509c891cee89c453c6238f3b90f982933f77162b496276d23f4ab9eeaf3a3. 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/DEF057202280.
Melody in F, Op. 3, No. 1 - Arr. G. Saborow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d9e76e6bce7cf00f91281b912cedef96b60318fbae63042f9e5e44e96897bc. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEF057202350.
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