ISRC FR50X1739321
Verified recording
FR50X1739321 is “Liederen Op. 7: Da Waren Zwei Kinder” by Alexander von Zemlinsky,
registered on the CopyrightChains blockchain with CopyrightID
0x0f0830628185a895a7191e8b6a34367c603426b80eb0c243017e34df871b457d and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1739321.
Recording identifiers
- ISRC
- FR50X1739321
- Title
- Liederen Op. 7: Da Waren Zwei Kinder
- Artist
- Alexander von Zemlinsky
- CopyrightID (CopyrightChains transaction hash)
0x0f0830628185a895a7191e8b6a34367c603426b80eb0c243017e34df871b457d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:d1cebe878a72b8b1f2e4ba361715fb3af676d312e759b66cb353c698073eb83d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1739321
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Liederen Op. 7: Da Waren Zwei Kinder · Machine-readable JSON-LD