Ballade vom preußischen Ikarus

Recording by Wolf Biermann.

Recording identifiers

ISRC
DENE27700043
CopyrightID (CopyrightChains transaction hash)
0x267f3aaa146daf4b7d7a7c313e55d53eb4e583ac79a5f3632ef82dca0cb72420
Copyright registration time
2026-07-07T05:46:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ba4f899711ccf2016986458d7483f59a0661b3dff5d5cb0dc516073fea99997b

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.