Hausaufgabe

Recording by Kaiser Quartett.

Recording identifiers

ISRC
DEG441890924
Release date of the album this recording appears on
2019-08-30
CopyrightID (CopyrightChains transaction hash)
0x07f305c96d0cc602dab9dc9c61cb757f577b37731b225926d387432efdcd58db
Copyright registration time
2026-07-30T16:47:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:23:26Z
Bitcoin block
960284
Canonical record hash
sha256:6aab75616e178e2b987aa3a2a6349a694874267a02cdfbfa50390d084bbd93df

What this proof establishes

This recording was released in 2019, 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.