ISRC DEF055901462
Verified recording
DEF055901462 is “String Quartet No. 1 in C Minor, Op. 51, No. 1: II. Romanze (Poco adagio)” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0x804ccaa02d42881d7d4f60ee11dacfd249c622aa7f0a6f5dab8e036647d7686d and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055901462.
Recording identifiers
- ISRC
- DEF055901462
- Title
- String Quartet No. 1 in C Minor, Op. 51, No. 1: II. Romanze (Poco adagio)
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0x804ccaa02d42881d7d4f60ee11dacfd249c622aa7f0a6f5dab8e036647d7686d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:66851d81b67962f7def33ac1d3d030d556e1cad8ae119754e2ff33703b3aec0f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055901462
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 1 in C Minor, Op. 51, No. 1: II. Romanze (Poco adagio) · Machine-readable JSON-LD