ISRC NLQK91700007
Verified recording
NLQK91700007 is “Sonata for Piano and Cello No. 2 in D, Op. 58: II. Allegretto scherzando” by Felix Mendelssohn,
registered on the CopyrightChains blockchain with CopyrightID
0xfd224e2d77bd9a8915e3c4866852bc2807edcbfd8c1b8c1758e8a408c71f4389 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLQK91700007.
Recording identifiers
- ISRC
- NLQK91700007
- Title
- Sonata for Piano and Cello No. 2 in D, Op. 58: II. Allegretto scherzando
- Artist
- Felix Mendelssohn
- CopyrightID (CopyrightChains transaction hash)
0xfd224e2d77bd9a8915e3c4866852bc2807edcbfd8c1b8c1758e8a408c71f4389
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:408573a63da8f81fc6f0489fd53f3fe5e3d5f6c47f46866ba3f696a30866d331- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLQK91700007
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Sonata for Piano and Cello No. 2 in D, Op. 58: II. Allegretto scherzando · Machine-readable JSON-LD