Das Land des Lächelns / Act 3: Kann es möglich sein?

Recording by Franz Lehár.

Recording identifiers

ISRC
DEF066802430
Release date of the album this recording appears on
1968-01-01
CopyrightID (CopyrightChains transaction hash)
0x6248550f46b1aabd66df3e56e207b0c622ba22bc7536550406e8ebb41f948b42
Copyright registration time
2026-07-30T16:30:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:23:26Z
Bitcoin block
960284
Canonical record hash
sha256:766ae11586a254960861688c066caf8e6074aa9e2911387fec02fb9ad3330b5b

What this proof establishes

This recording was released in 1968, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.