ISRC NLA506700401
Verified recording
NLA506700401 is “String Quartet No. 1 in A Minor, Op. 41 No. 1: I. Introduzione. Andante espressivo - Allegro” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0x8d4c4b514492d912df779930513e9055b5290b13e9b87f7782649675a0e5c92a and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700401.
Recording identifiers
- ISRC
- NLA506700401
- Title
- String Quartet No. 1 in A Minor, Op. 41 No. 1: I. Introduzione. Andante espressivo - Allegro
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0x8d4c4b514492d912df779930513e9055b5290b13e9b87f7782649675a0e5c92a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:cee520b791e4cfb33d419492851fd4ebaa5782424dcfb9fb3fedb5fdb5c322cc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700401
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: String Quartet No. 1 in A Minor, Op. 41 No. 1: I. Introduzione. Andante espressivo - Allegro · Machine-readable JSON-LD