ISRC NLE422435809
Verified recording
NLE422435809 is “Piano Sonata, BB 88, Sz. 80: II. Sostenuto e pesante” by Béla Bartók,
registered on the CopyrightChains blockchain with CopyrightID
0x6cf10296501539d10d5fc077d332e8d10290bddf213b637806b20db030bbb5c1 and independently timestamped
in Bitcoin block 960212 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422435809.
Recording identifiers
- ISRC
- NLE422435809
- Title
- Piano Sonata, BB 88, Sz. 80: II. Sostenuto e pesante
- Artist
- Béla Bartók
- CopyrightID (CopyrightChains transaction hash)
0x6cf10296501539d10d5fc077d332e8d10290bddf213b637806b20db030bbb5c1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:43:45+00:00
- Bitcoin block
- 960212
- Canonical record hash
sha256:6f1528570588fb5ddd65454348241fef7551acb45882bb836d533e83856178a2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422435809
- Bitcoin block existence check
- https://blockstream.info/api/block/960212
Full record
Track page: Piano Sonata, BB 88, Sz. 80: II. Sostenuto e pesante · Machine-readable JSON-LD