Michel Block (January 12, 1937 – March 4, 2003) was a Belgian-French pianist. Biography Born of French parents in Antwerp, Belgium, he moved with his parents to Mexico as child, where his grandfath
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 0xf9bb5718de21dae7aea7949fe82529c4f0040ed8fec935238c9ca87e8e533181. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44f9103f-bd46-4500-a6ba-c3fa234b8e96.json and https://artists.proofprofile.net/proofs/artist/44f9103f-bd46-4500-a6ba-c3fa234b8e96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schumann: Noveletten Op. 21 and 3 Encores
Scriabin: Sonata-Fantasy No.2, Op 19, Chopin: Polonaise-Fantasy, Op.61
Scriabin: Sonata-Fantasy No.2, Op 19 - Chopin: Polonaise-Fantasy, Op.61 - and other works