Polska efter Oppigårds Lars

Recording by Per Gudmundson.

Recording identifiers

ISRC
SEAGA8205420
CopyrightID (CopyrightChains transaction hash)
0xbeb0d02598e92d0e572a5ddc3914c53a29f1020e1a0d11fc4e9a3a55478f1873
Copyright registration time
2026-07-07T04:11:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e59183b5c0c554803b572f9eb812329a818867b6f430f6b8ec992e43465994bd

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.