Rosenbloms Trio

Recording by Alf Prøysen.

Recording identifiers

ISRC
NOFKF9304030
CopyrightID (CopyrightChains transaction hash)
0xf033b58512d4b199657b7a23c792b28362133888a3b0fb739f3751e37fdfe31b
Copyright registration time
2026-08-01T03:20:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T03:41:24Z
Bitcoin block
960503
Canonical record hash
sha256:fcd6585ebc4a7c45fd6865e43d4bdceb1f9db06c0a1d11571efabec75d0ddabb

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.