ISRC DEF055901472
Verified recording
DEF055901472 is “String Quartet No. 2 in A Minor, Op. 51, No. 2: II. Andante moderato” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xa850d971145f668778cfc1aa230f1588c8e6c90073ee28340277f0e698ca259b and independently timestamped
in Bitcoin block 960193 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055901472.
Recording identifiers
- ISRC
- DEF055901472
- Title
- String Quartet No. 2 in A Minor, Op. 51, No. 2: II. Andante moderato
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xa850d971145f668778cfc1aa230f1588c8e6c90073ee28340277f0e698ca259b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T02:05:19+00:00
- Bitcoin block
- 960193
- Canonical record hash
sha256:0ef94ccfd9bbf609941ae07710bf5a483b6d624d9b0015bd6bd7c03168e156ac- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055901472
- Bitcoin block existence check
- https://blockstream.info/api/block/960193
Full record
Track page: String Quartet No. 2 in A Minor, Op. 51, No. 2: II. Andante moderato · Machine-readable JSON-LD