Das Land des Lächelns: Immer nur lächeln

Recording by Franz Lehár.

Recording identifiers

ISRC
DEL111402162
Release date of the album this recording appears on
2015-03-03
CopyrightID (CopyrightChains transaction hash)
0x144f374b08dac757739e91c91344dc2db0c0a376c5600dca2b773fa93268a60b
Copyright registration time
2026-07-07T09:03:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dc34dc1cd5c5186b20f53497808814eb6a0a0f448339c1d7423505f32af909f9

What this proof establishes

This recording was released in 2015, 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.