Takt och ton

Recording by Per Grundström.

Recording identifiers

ISRC
SERLE0501170
CopyrightID (CopyrightChains transaction hash)
0xe0ace6a3af5f5f2dcb3b12b8268755b61d7239ab7cc254c42d126a0809c3a3bc
Copyright registration time
2026-07-07T03:22:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a4adcaa9a7f821ed975380a751595294fc26411cd8b0e5954d2f4c94dd05f4d8

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.