Messa da Requiem for Soloists, Chorus and Orchestra: II. Dies Irae: Lacrymosa dies illa

Recording identifiers

ISRC

USSM17000403

Release date of the album this recording appears on

1970

CopyrightID (CopyrightChains transaction hash)

0x8bd6ad26a595edd297a0e62e1f1792fec9b1228664ddfd2bc51557e501189495

Copyright registration time

2026-07-30T03:00:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T03:35:13Z

Bitcoin block

960203

Canonical record hash

sha256:4224a51cda036da3d962e48928226fc02fa13f6d1e72043fed387c5523cf6379

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM17000403

What this proof establishes

This recording was released in 1970, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.