Prelude For Meditation

Recording by John Cage.

Recording identifiers

ISRC
ITK5L1300370
Release date of the album this recording appears on
2018-09-24
CopyrightID (CopyrightChains transaction hash)
0x3b55fbddf58995cf3d84f17acc6c34d573cc30ee05ef82693c1ecf727023b0da
Copyright registration time
2026-07-30T04:51:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T05:15:54Z
Bitcoin block
960209
Canonical record hash
sha256:0ae46f8bbe06986bb7e268adbe6620a529d7aa7c77866fdbfe05b721201e101c

What this proof establishes

This recording was released in 2018, 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.