ISRC NLE420500804
Verified recording
NLE420500804 is “Double Concerto for Violin and Cello in A Minor, Op. 102: I. Allegro” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0x26cfe82ba4bc436b29f4122f9b8317df7aa48b0628edbd6f0aeef45bb662049f and independently timestamped
in Bitcoin block 957073 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE420500804.
Recording identifiers
- ISRC
- NLE420500804
- Title
- Double Concerto for Violin and Cello in A Minor, Op. 102: I. Allegro
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0x26cfe82ba4bc436b29f4122f9b8317df7aa48b0628edbd6f0aeef45bb662049f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T18:39:05+00:00
- Bitcoin block
- 957073
- Canonical record hash
sha256:eb1b5ab5528e5a46449c553af0d7c592ee6435569f53d3b2ae2f2c75abea291b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE420500804
- Bitcoin block existence check
- https://blockstream.info/api/block/957073
Full record
Track page: Double Concerto for Violin and Cello in A Minor, Op. 102: I. Allegro · Machine-readable JSON-LD