Wiegenmusik

Recording by Helmut Lachenmann.

Recording identifiers

ISRC
USSM11105111
CopyrightID (CopyrightChains transaction hash)
0x4f1518db8f3c80af50d71430820ae4ec18f388d12958a2c2cbad9fbcef75ebec
Copyright registration time
2026-07-30T14:53:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T15:42:38Z
Bitcoin block
960273
Canonical record hash
sha256:9f40d1a63463ffc163957dd02a2202e566ec221a8d5226ba3706a0e5fe78c58e

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.