Requiem. Missa della morte in C: No. 1, Requiem aeternam I

Recording identifiers

ISRC

CZA162100944

Release date of the album this recording appears on

2021-10-15

CopyrightID (CopyrightChains transaction hash)

0x98dfa8895f98471c74394f7a849246a8eac9c327a588123e30025b438726f8c0

Copyright registration time

2026-07-30T15:04:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:310a5ed06f77588d457f8352007a63ca450c69d96a25c5653f0c6ffadeba44f8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CZA162100944

What this proof establishes

This recording was released in 2021, 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.