Prelude

Recording by Fartein Valen.

Recording identifiers

ISRC
NOFZP9224140
CopyrightID (CopyrightChains transaction hash)
0x63ef302537acf56a61a234d8ed769759b52446d14bdbaa6025e138b9a8f60e9f
Copyright registration time
2026-07-07T10:01:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:416ea7addaf7c67eb86ba69f9930ea1f4609549b57ba4ca8e0341ff3ee8c351c

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.