1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687063a0dcf0b883dba3c3b338fe881de54308c52d5f17f1c95a040c4dafa7b2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba55d11c-eeb5-4e42-aa27-a0dba4352e0d.json and https://artists.proofprofile.net/proofs/artist/ba55d11c-eeb5-4e42-aa27-a0dba4352e0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Part: Stabat Mater; Magnificat & Nunc dimittis; Es sang vor langen Jahren etc
2 Sonatinen for piano, Op. 1 / No. 1: 1. Allegro
2 Sonatinen for piano, Op. 1 / No. 1: 2. Larghetto
2 Sonatinen for piano, Op. 1 / No. 2: 1. Allegro energico
2 Sonatinen for piano, Op. 1 / No. 2: 2. Largo
2 Sonatinen for piano, Op. 1 / No. 2: 3. Allegro
Ein deutsches Requiem, Op. 45: Wie lieblich sind Deine Wohnungen
Pärt: My Heart's In The Highlands (2000)