One 7 (For Guitar and Live Electronics)

Recording by John Cage.

Recording identifiers

ISRC
SERKA1401003
CopyrightID (CopyrightChains transaction hash)
0xc0cf2a3bbdf3aea88ed8d7e8d14db1a2f21b53133ab5d9cd09e323143fff90d6
Copyright registration time
2026-01-28T19:25:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:5a525b365fc6f405c91c3c46e54eff81cd1831e853d4b8ddc688e3c8137daf4d

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.