Requiem, Op. 48 (1893 version): Introit and Kyrie

Recording by John Rutter.

Recording identifiers

ISRC
HKI199508201
Release date of the album this recording appears on
2011-10-11
CopyrightID (CopyrightChains transaction hash)
0x731e02f785e2c8b044334914195f7df5f51d3225d296998f736f058be0516354
Copyright registration time
2026-07-31T07:25:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:d242c5d5efa19b126f8278d87d1b4d90bcdbcfc4e2af2cfd756399846c97f994

What this proof establishes

This recording was released in 2011, 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.