Luffarvisan

Recording by Jacob Nordenson.

Recording identifiers

ISRC
SEVGT1301505
Release date of the album this recording appears on
2015-11-03
CopyrightID (CopyrightChains transaction hash)
0xa65c96bdaae158f6508f34219dd9aa9518af0c6a78e992d2e204733fee7eebe3
Copyright registration time
2026-07-04T04:02:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:804e1b692dbf5bdb50dda3e466b19c8e1d1ec592ff473251a63763f076a6b00d

What this proof establishes

This recording was released in 2015, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.