ISRC CZH401107776
Verified recording
CZH401107776 is “Piano Concerto No. 3 in C Minor, Op. 37: II. Largo” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xc30717a654dcbfe15c6ae7ef9d13edd68acb877f1fd67b3da7811dc28d9d66b0 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107776.
Recording identifiers
- ISRC
- CZH401107776
- Title
- Piano Concerto No. 3 in C Minor, Op. 37: II. Largo
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xc30717a654dcbfe15c6ae7ef9d13edd68acb877f1fd67b3da7811dc28d9d66b0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:e270ad6e7ec65f17fbddf53cf98f2687c30c1c180bb80630145d225c2d09476f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107776
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Piano Concerto No. 3 in C Minor, Op. 37: II. Largo · Machine-readable JSON-LD