Vespers, Op. 37: III. "Blazhen muzh"

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
NLA509306403
CopyrightID (CopyrightChains transaction hash)
0x115c2f70e97738cf719194ee78c94ec28b3965accaf7ccd3636909692750fe09
Copyright registration time
2026-06-24T08:36:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:68a6bfd550019d5fef1b8c05b73647a85ecd1b967783986e71e40d11ad2b107f

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.