Polska efter Anders Olsson / Halling efter Per Myhr

Recording by Mats Berglund.

Recording identifiers

ISRC
SEVJH1504203
CopyrightID (CopyrightChains transaction hash)
0x92af5467f4ee140f241ce3e2338f879b8046e2e337ea10c6facc95ac45bd8ce6
Copyright registration time
2026-07-31T10:19:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:a7e73ab5e89fdb9d2de8f581ea3fb902813a5575771f508300f767366cb619d2

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.