Ack käre vän

Recording by John Holm.

Recording identifiers

ISRC
SEPQD7411090
CopyrightID (CopyrightChains transaction hash)
0xdca80a663eda23e4e81ec6de0c08d1992fcee33086b8f3549b36ddf6a91cf10f
Copyright registration time
2026-03-20T05:13:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:949622e965ae4d86e08f3f3cbef88bb44a91786cb4641407ef5ca7bc797d860a

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.