ISRC NLE422203042
Verified recording
NLE422203042 is “Játékok, Book VII: No. 2, For Georg Kröll's birthday” by György Kurtág,
registered on the CopyrightChains blockchain with CopyrightID
0xbf139cb9964e54d8961c609dd616553c3da5a2e635a2766fe1b4a4a95b6e5fee and independently timestamped
in Bitcoin block 960387 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422203042.
Recording identifiers
- ISRC
- NLE422203042
- Title
- Játékok, Book VII: No. 2, For Georg Kröll's birthday
- Artist
- György Kurtág
- CopyrightID (CopyrightChains transaction hash)
0xbf139cb9964e54d8961c609dd616553c3da5a2e635a2766fe1b4a4a95b6e5fee
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T10:06:30+00:00
- Bitcoin block
- 960387
- Canonical record hash
sha256:10a47794c9fa10d0c4249472da6bdfe0872e621d072f15eed697be30a7dda10e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422203042
- Bitcoin block existence check
- https://blockstream.info/api/block/960387
Full record
Track page: Játékok, Book VII: No. 2, For Georg Kröll's birthday · Machine-readable JSON-LD