Officium Defunctorum - In Primo Nocturno (Lecti II)

Recording identifiers

ISRC

CH4210801964

Release date of the album this recording appears on

2009-08-25

CopyrightID (CopyrightChains transaction hash)

0x4ca7cb57fb295e70375c3d4f38091955d9e10b20a36fc869adcfc36c676e2bbb

Copyright registration time

2026-07-30T01:11:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T01:32:48Z

Bitcoin block

960185

Canonical record hash

sha256:1b6954b6547616e3fead8a0966e3894157951e27211e091f20a710685c2ebd5e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CH4210801964

What this proof establishes

This recording was released in 2009, 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.