Requiem in E-Flat Minor: VI. Lacrymosa

Recording by Józef Kozłowski.

Recording identifiers

ISRC
NLE422312506
CopyrightID (CopyrightChains transaction hash)
0x5ba3bc9dadd066a3e70c46f21cd39d0ffc3a29ed3e3fdbbdc1da680218790ca5
Copyright registration time
2026-07-07T09:36:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:bbefb3171985966df7664a5d8ea086674eb63088a65b5973bccfe1d0588427c5

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.