5 Preludes on Plainchant Melodies, Op. 157: Prelude No. 3: Ecce jam noctis

Recording identifiers

ISRC

HKI190401710

Release date of the album this recording appears on

2005-12-13

CopyrightID (CopyrightChains transaction hash)

0xfdb05e689fbbff7109ccacb1df4133412516a9536dcb8921e79dde4ed6a868a4

Copyright registration time

2026-07-31T17:35:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:c2ce6cb99ed3d4a7da2ce1019892266e9ca5c9e4310419a31737786762746d68

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI190401710

What this proof establishes

This recording was released in 2005, 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.