Folklig vals nr 2

Recording by Lille Bror Söderlundh.

Recording identifiers

ISRC
USV291431689
CopyrightID (CopyrightChains transaction hash)
0xc7a382ef81ee46332c1eabe1dd2fb5f16e2f0ce307e3c6d8f3a3e4672b9bf558
Copyright registration time
2026-01-29T02:01:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:32de8143099dbb9fdf42c29c27f17f6db3cbca9ccfc9c7f628d013966fcb650f

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.