ISRC DEF059430310
Verified recording
DEF059430310 is “Die lustige Witwe / Act I: "Habe schon die vierte Nacht nicht geschlafen!"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x9f44e5547c30cc719b211169073fd86cde385dd7324c8b403aaa8c36b22424af and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430310.
Recording identifiers
- ISRC
- DEF059430310
- Title
- Die lustige Witwe / Act I: "Habe schon die vierte Nacht nicht geschlafen!"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x9f44e5547c30cc719b211169073fd86cde385dd7324c8b403aaa8c36b22424af
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:4e244a55a60c035b1508840f40d9d176474cfeaa80c0e51094cc1e3292c095f0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430310
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: Die lustige Witwe / Act I: "Habe schon die vierte Nacht nicht geschlafen!" · Machine-readable JSON-LD