Sauerkraut-Polka

Recording by Gus Backus.

Recording identifiers

ISRC
DEF066315580
CopyrightID (CopyrightChains transaction hash)
0x6afa4ed6d901854a972752c3d9dd10f0ad1f6e5b2451360d5f67afc6304989a3
Copyright registration time
2026-07-07T09:26:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:5f769c74f0240dfc8514de65dceffd0b093d21d0b66787b56c1641241f9ebadc

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.