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
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:422f0f00784dd58f330f6eceac1406aae28a269d768c3c83a835b836498d44ae

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.