ISRC DEF056000224
Verified recording
DEF056000224 is “String Quartet No. 3 in B Flat Major, Op. 67: IV. Poco allegretto con variazioni - Doppio movimento” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xa7f334a4d2abf17ab1558f3db1e99efa29a65247e374d7dc89d3cf65fd146b61 and independently timestamped
in Bitcoin block 960339 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000224.
Recording identifiers
- ISRC
- DEF056000224
- Title
- String Quartet No. 3 in B Flat Major, Op. 67: IV. Poco allegretto con variazioni - Doppio movimento
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xa7f334a4d2abf17ab1558f3db1e99efa29a65247e374d7dc89d3cf65fd146b61
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:13:37+00:00
- Bitcoin block
- 960339
- Canonical record hash
sha256:b1bd6a10dab4624a1a5e146ddf4b5230fdc14a11b9679502b8739255918d39d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000224
- Bitcoin block existence check
- https://blockstream.info/api/block/960339
Full record
Track page: String Quartet No. 3 in B Flat Major, Op. 67: IV. Poco allegretto con variazioni - Doppio movimento · Machine-readable JSON-LD