Letter

Recording by Vidar Villa.

Recording identifiers

ISRC
NOYHV2501030
CopyrightID (CopyrightChains transaction hash)
0x0a981652d10378df27761e62f0dfb3b9ff8b85fe9151a8354fc1ba5d2d55115c
Copyright registration time
2026-06-09T14:54:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:41451e608703898192a61158ff338f640d1d966826237f906421ece663526419

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.