The Perilous Night: No. 6. —

Recording by John Cage.

Recording identifiers

ISRC
HKI190020406
CopyrightID (CopyrightChains transaction hash)
0x42a73e8d3e95a39b852c95eae5bf53ebb91e3b99b1c04f838412ec1599ec7c9c
Copyright registration time
2026-07-30T17:47:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T18:23:33Z
Bitcoin block
960291
Canonical record hash
sha256:716889ef6cf8b4e5144b6d817bed4b04140f230ac408c4357466ccbec4625668

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.