The Perilous Night: No. 5. —

Recording by John Cage.

Recording identifiers

ISRC
HKI190020405
CopyrightID (CopyrightChains transaction hash)
0xf20ec64d219c097ff4d6f05987b7e2d10069afa6896608fbf3f8f23e9c72f96d
Copyright registration time
2026-07-07T17:27:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5168944399c63a11d02ca231180ce35fcbf618263fd4ba26ee21c6993c0ef719

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.