Prelude for Meditation

Recording by John Cage.

Recording identifiers

ISRC
HKI190020417
CopyrightID (CopyrightChains transaction hash)
0x14a9eecc3385b5410cf3095dc84f6ab303a0f6131ade634f9af5df17d5c4f92e
Copyright registration time
2026-07-31T08:08:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:8972ceca60505f303f2f8831634ddd41a38152a50c2b2e037385162a1d1aa33e

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.