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 0x7335cd7f71ad948045081633a5f64b203c3a81d21e1ce17042cbd2653206d17b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c6419d1-f883-4ed9-9776-7e45d08d0062.json and https://artists.proofprofile.net/proofs/artist/3c6419d1-f883-4ed9-9776-7e45d08d0062.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beethoven: Sonata for Piano No. 14 in C-Sharp Minor, Op. 27, No. 2 “Moonlight” (Digitally Remastered)
Beethoven: Sonata for Piano No. 30 in E Major, Op. 109 (Digitally Remastered)
Beethoven: Sonata for Piano No. 32 in C Minor, Op. 111 (Digitally Remastered)
Beethoven: Sonata for Piano No. 31 in A-Flat Major, Op. 110 (Digitally Remastered)
Beethoven: Sonata for Piano No. 28 in A Major, Op. 101 (Digitally Remastered)
Beethoven: Sonata for Piano No. 27 in E Minor, Op. 90 (Digitally Remastered)
Beethoven: Sonata for Piano No. 26 in E-Flat Major, Op. 81a “Les Adieux" (Digitally Remastered)
Beethoven: Sonata for Piano No. 25 in G Major, Op. 79 (Digitally Remastered)
Beethoven: Sonata for Piano No. 24 in F-Sharp Major, Op. 78 (Digitally Remastered)
Beethoven: Sonata for Piano No. 23 in F Minor, Op. 57 "Appassionata" (Digitally Remastered)
Beethoven: Sonata for Piano No. 21 in C Major, Op. 53 “Waldstein” (Digitally Remastered)
Beethoven - Piano Sonatas No 14, No 23, No 25 and No 26
Beethoven - Sonatas No 24, No 27, No 28 and No 32
Beethoven - Piano Sonata No 23; Berlioz - Romeo and Juliet
Beethoven - Sonata No 27; Mozart - Seranade No 10 Grand Partita
Beethoven: Piano Sonatas No. 10 and No. 25 - Brahms: Symphony No. 4
Beethoven - Piano Sonata No 21; Berlioz - The Secret Judge Overture; Bernstein - Westside Story - Symphonic Dances
Beethoven: Piano Sonata No. 31 - Berlioz: Symphony Fantastique
Beethoven - Piano Sonatas No 12, No 16, No 24 and No 31
Beethoven: Piano Sonatas No. 4, No. 8 & No. 10
The Most Relaxing Classical Music In The Universe
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 0xc53e669702c8d26a6e19effb887946affb3997afd6876bbb5acd521c78047afc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSJ10301412.