ISRC DEF056000221
Verified recording
DEF056000221 is “String Quartet No. 3 in B Flat Major, Op. 67: I. Vivace” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xaaf14f876a33e9f9bfb7d2752364ee2b4bca298ac97148a2fcf9654b83f1a127 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000221.
Recording identifiers
- ISRC
- DEF056000221
- Title
- String Quartet No. 3 in B Flat Major, Op. 67: I. Vivace
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xaaf14f876a33e9f9bfb7d2752364ee2b4bca298ac97148a2fcf9654b83f1a127
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:3bd61434ba8250c116bd52266bcad8b0d659f91d8d494f832a13b75cc0474e20- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000221
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: String Quartet No. 3 in B Flat Major, Op. 67: I. Vivace · Machine-readable JSON-LD