Den sista valsen

Recording by Claes-Göran Hederström.

Recording identifiers

ISRC
SEAMX6700551
CopyrightID (CopyrightChains transaction hash)
0x094c9277c22a922395f370589925ddb9556391d95a1aaee8ab580e8b1a1c23e2
Copyright registration time
2026-01-28T19:18:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:a539f54ef87537617ed5e33734adfd9b66a7637674c269fd965766a6908ea073

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.