Cage: Primitive

Recording by John Cage.

Recording identifiers

ISRC
GBAYC2400399
CopyrightID (CopyrightChains transaction hash)
0x7b0c413da3a0710e1e977272620100260006f6be51704ba413a09f82ff4d408a
Copyright registration time
2026-07-06T20:53:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:502f7c28a2c70f5f108e1246b5c186bd4805babb58d7f6e9e5056165de63768d

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.