Alexander Raab (14 March 18822 October 1958)The piano in concert / Compiled and annotated by George Kehler. — Scarecrow Press, 1982. — Vol. II, p. 1011. was a Hungarian-American pianist and distinguis
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 0xc5f7634b73e814893ea05b1b1a7495f2564dedd3778bacec1b2a0849f6ed0454. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9da9e957-30e3-42de-8f9f-8effeb6ff4a5.json and https://artists.proofprofile.net/proofs/artist/9da9e957-30e3-42de-8f9f-8effeb6ff4a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"062 Classical Evocations": Doppio Movimento
Fantasia in D Minor, K. 397 - Duo-Art 5677
Noel. Piano Music of Beethoven, Mozart and Legacy
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 0xc34d13d0e182d28df49c764527cf3574e314c7a496242ec5d06714cbbd603b79. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82308829.
Waltz, Op. 39, No. 15 A-Flat Major - Duo-Art 5642.
Aeolian Murmurings. Piano Evocations from the Golden Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5287b36958eeeb6ac795948c90f08735dabc983e319bcd4ff56bf3e28ccc569d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82437912.
'Atalia' - Contemporary & Classical Masterworks, Vol. 3