ISRC DEF066802310
Verified recording
DEF066802310 is “Das Land des Lächelns / Act 1: Immer nur lächeln” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x6394725ded51e62fcbcba6d46a8cd3ae16f9355933bb4e891e57dc290b5542ea and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066802310.
Recording identifiers
- ISRC
- DEF066802310
- Title
- Das Land des Lächelns / Act 1: Immer nur lächeln
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x6394725ded51e62fcbcba6d46a8cd3ae16f9355933bb4e891e57dc290b5542ea
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:feadca58c8ca5045505f3ac2c35f7d8a13c1ac8c6f8d92414280fe381c212dcb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066802310
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Das Land des Lächelns / Act 1: Immer nur lächeln · Machine-readable JSON-LD