Alexander Alexandrovich Kopylov or KopilovClassical Net - Composer Data - Statistics & Birthday List at www.classical.net (Александр Александрович Копылов, 14 July 1854 – 20 February 1911) was a compo
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 0x1fc04783e688472ef8f5b81f9c2044a447e4aaf83a94dfebfcd27896d13f6bc6. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b60ed811-058e-4e9f-bcc8-37041e4a4ba7.json and https://artists.proofprofile.net/proofs/artist/b60ed811-058e-4e9f-bcc8-37041e4a4ba7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Respighi Ancient Dances and Arias 3 Op. 40 1-4
Respighi Ancient Dances and Arias 2 Op. 40 1-4
Respighi Ancient Dances and Arias 1 Op. 40 1-4
Ancient Airs and Dances, Suite No. 2, P. 132: IV. Bergamasca (Bernardo Gianecelli)
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 0x63f13b38fff58d6bbaeb8eff0805b1690b7481c3e07b784c749539f340846a7d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEWDL9523912.
100 Most Relaxing Classical Music In The Universe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28582d0f378dd7ecb31c1686bbc45398923e74eb1e3f82767f27abab3a11f3e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USSJ10813866.
Cipollino, Act I Scene 1: Everybody's Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bca9bd8347aa743b656735381e0ee92e290f0388b5075908be0dee418a7e68. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UK2Y21303245.
Cipollino, Act I Scene 1: Cipollino's Entrance and Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5472a12c25b3450002c9ec15175e5f67e977a66583c169990b52db938c7dc38. 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/UK2Y21303246.
Cipollino, Act I Scene 1: Pumpkin's Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51685e04fee81d39ab2ccc0b2f54664aca979fc346d58682c03473f59ea5973d. 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/UK2Y21303247.
Cipollino, Act I Scene 1: The Policemen and Tomato's Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f0d6b490991b9cc15fce719983e1a838bb55ed51de74bf5173516d1df265b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/UK2Y21303248.