ISRC NLE422203001
Verified recording
NLE422203001 is “Játékok, Book I: No. 1b, Prelude and Waltz in C” by György Kurtág,
registered on the CopyrightChains blockchain with CopyrightID
0x7933fe67aacd9d1283b4c5d2ac4ad8ac87b7c509ea0c27454952f6a093124d45 and independently timestamped
in Bitcoin block 960150 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422203001.
Recording identifiers
- ISRC
- NLE422203001
- Title
- Játékok, Book I: No. 1b, Prelude and Waltz in C
- Artist
- György Kurtág
- CopyrightID (CopyrightChains transaction hash)
0x7933fe67aacd9d1283b4c5d2ac4ad8ac87b7c509ea0c27454952f6a093124d45
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:51:49+00:00
- Bitcoin block
- 960150
- Canonical record hash
sha256:24384772d2afab3747989cc5893e01c2b2182084ac039b33bc2c4dd0d754344d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422203001
- Bitcoin block existence check
- https://blockstream.info/api/block/960150
Full record
Track page: Játékok, Book I: No. 1b, Prelude and Waltz in C · Machine-readable JSON-LD