ISRC DEF057939322
Verified recording
DEF057939322 is “Friedrich Cerha: Über den dritten Akt von Alban Bergs „Lulu“” by Unknown,
registered on the CopyrightChains blockchain with CopyrightID
0x9ca170f84c34d2e0fe1a4553db3a4b7ace7d3fb20a7b1623839b21b14c38ae42 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057939322.
Recording identifiers
- ISRC
- DEF057939322
- Title
- Friedrich Cerha: Über den dritten Akt von Alban Bergs „Lulu“
- Artist
- Unknown
- CopyrightID (CopyrightChains transaction hash)
0x9ca170f84c34d2e0fe1a4553db3a4b7ace7d3fb20a7b1623839b21b14c38ae42
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:a635b4cce6a91307db5f1f5933f73e6b003babc735a8c87a3e3576a2eb2410b0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057939322
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Friedrich Cerha: Über den dritten Akt von Alban Bergs „Lulu“ · Machine-readable JSON-LD