ISRC NLB152200891
Verified recording
NLB152200891 is “Post Scriptum, Sonata for Violin and Piano: I. Largo - Allegro - Andante” by Valentin Silvestrov,
registered on the CopyrightChains blockchain with CopyrightID
0xed4f3880ea98af6b0dd255023057bce23a81e40e99a4cf32f19f22803baa36db 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/NLB152200891.
Recording identifiers
- ISRC
- NLB152200891
- Title
- Post Scriptum, Sonata for Violin and Piano: I. Largo - Allegro - Andante
- Artist
- Valentin Silvestrov
- CopyrightID (CopyrightChains transaction hash)
0xed4f3880ea98af6b0dd255023057bce23a81e40e99a4cf32f19f22803baa36db
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:224673eaac64105e23c00cbb653d2d425782c5e34c7885f3665d60c83940d590- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB152200891
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Post Scriptum, Sonata for Violin and Piano: I. Largo - Allegro - Andante · Machine-readable JSON-LD