Lutfiskens sång

Recording by Adolf Fredriks Musikklasser.

Recording identifiers

ISRC
SEVOZ2102209
CopyrightID (CopyrightChains transaction hash)
0x812436b29dea379a54fd047feb26981eacc08e8b76856991e88fc6547d2fb622
Copyright registration time
2026-01-28T22:30:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:4148422250dd730719c4ad164654b6e50cd22fe82512aa6ca6af8791762c227a

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.