Sommerfuggel I Vinterland

Recording by Halvdan Sivertsen.

Recording identifiers

ISRC
NOPLB0402040
CopyrightID (CopyrightChains transaction hash)
0xa299e4b043b8746583d8c8a9b613cd392328d73db3433cf35dba245dd066fa94
Copyright registration time
2026-06-05T18:30:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:2c34b648b0cce5af3506244dede3f42fa7c3aa2f18cb4df4e9fbfc1ab66301ba

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.