ISRC DEF066810520
Verified recording
DEF066810520 is “The Merry Widow (Die lustige Witwe) / Act 1: Ich bin eine anstän'dge Frau” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x2f6af63e2f54d89cbd74c707723c5cf32ae9d3ebafaba79802bcea3d638d283a and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810520.
Recording identifiers
- ISRC
- DEF066810520
- Title
- The Merry Widow (Die lustige Witwe) / Act 1: Ich bin eine anstän'dge Frau
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x2f6af63e2f54d89cbd74c707723c5cf32ae9d3ebafaba79802bcea3d638d283a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:876a8d2cfe58001d3efe008322a412ce003cf31001a0a8018db050bd24297ad7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810520
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: The Merry Widow (Die lustige Witwe) / Act 1: Ich bin eine anstän'dge Frau · Machine-readable JSON-LD