ISRC FR50X1739320
Verified recording
FR50X1739320 is “Liederen Op. 5: Schlaf Nur Ein” by Alexander von Zemlinsky,
registered on the CopyrightChains blockchain with CopyrightID
0xe8f54cef60327763254500f956e2151dd700e6f90025b218e423ac129122ad91 and independently timestamped
in Bitcoin block 960478 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1739320.
Recording identifiers
- ISRC
- FR50X1739320
- Title
- Liederen Op. 5: Schlaf Nur Ein
- Artist
- Alexander von Zemlinsky
- CopyrightID (CopyrightChains transaction hash)
0xe8f54cef60327763254500f956e2151dd700e6f90025b218e423ac129122ad91
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:30:38+00:00
- Bitcoin block
- 960478
- Canonical record hash
sha256:88d70155fc3b9f38159c33082264a3dba53ce5bac5ce2e4d5841fce81c0463cb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1739320
- Bitcoin block existence check
- https://blockstream.info/api/block/960478
Full record
Track page: Liederen Op. 5: Schlaf Nur Ein · Machine-readable JSON-LD