ISRC DEF056000222
Verified recording
DEF056000222 is “String Quartet No. 3 in B Flat Major, Op. 67: II. Andante” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xacf112d20b2de61c437dc3914ef03474f2f328f9395e912b0225199e52ba7f2c and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000222.
Recording identifiers
- ISRC
- DEF056000222
- Title
- String Quartet No. 3 in B Flat Major, Op. 67: II. Andante
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xacf112d20b2de61c437dc3914ef03474f2f328f9395e912b0225199e52ba7f2c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:282bf666963cd2088b4226654294bd674246e1dd43bebd87addc9d07e67d3f29- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000222
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: String Quartet No. 3 in B Flat Major, Op. 67: II. Andante · Machine-readable JSON-LD