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

Recording identifiers

ISRC

USSM17000395

Release date of the album this recording appears on

1970

CopyrightID (CopyrightChains transaction hash)

0x4ec5c1ea5519582b595275042c636294066a726a296ad135380928ab445d86d3

Copyright registration time

2026-06-21T22:31:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:34eef0a39cafa62f0a821f514c5ba8ecd6afc1ab7aee7d9d85594a4a3d39df0d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM17000395

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.