Lulu, Act II: Sie glauben nicht – Könntest du dich für heute nachmittag

Recording by Alban Berg.

Recording identifiers

ISRC
DEF057930916
Release date of the album this recording appears on
2000-01-01
CopyrightID (CopyrightChains transaction hash)
0x45486d5c66d04a876b41aa35edbacc942eea7203ca300cad84f394fb1a5ffe6a
Copyright registration time
2026-07-30T18:31:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T18:46:00Z
Bitcoin block
960294
Canonical record hash
sha256:cdd7d1aa48a412933e6ac68d36f13396c2d5214a83a3fe47b6f255a730efc701

What this proof establishes

This recording was released in 2000, 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.