Cage: Root of an Unfocus

Recording by John Cage.

Recording identifiers

ISRC
GBAYC2400408
CopyrightID (CopyrightChains transaction hash)
0x74e9c1ceca7e9702b419dc25b5b245ab2254ddf05e0a88a9e31f8bf70925d1a5
Copyright registration time
2026-07-07T08:30:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0b9eecefc9dbe65c01d43d61dc39ba1b32294f51bed9562cf07a7202f96a7f16

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.