Winterschlaf

Recording by Ludwig Hirsch.

Recording identifiers

ISRC
ATUM70800087
CopyrightID (CopyrightChains transaction hash)
0xc9d042cfb2189af3805c799e49b883cfadba4380c8051b3484ea0a78c1b7e1ba
Copyright registration time
2026-07-07T06:58:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b201ea1334aa40d37c28509003c34e2d95fe2de3a7fd374a18df84510f5f0087

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.