ISRC QZDA72350227
Verified recording
QZDA72350227 is “Játékok VI, 16, Letter to Marianne Teöke” by György Kurtág,
registered on the CopyrightChains blockchain with CopyrightID
0x5b5a490a66b08514907508767199970ff2401bb1405b4bbf2b4cfba58376252d and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72350227.
Recording identifiers
- ISRC
- QZDA72350227
- Title
- Játékok VI, 16, Letter to Marianne Teöke
- Artist
- György Kurtág
- CopyrightID (CopyrightChains transaction hash)
0x5b5a490a66b08514907508767199970ff2401bb1405b4bbf2b4cfba58376252d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:2c53c645239668da0725f1d033965fbbdd31aa640a2f9798943d05a30d52b7d6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72350227
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Játékok VI, 16, Letter to Marianne Teöke · Machine-readable JSON-LD