Thirteen Harmonies: VI. Harmony 5

Recording by John Cage.

Recording identifiers

ISRC
DEB161000309
CopyrightID (CopyrightChains transaction hash)
0x0cb7f30e99c0a048639fa806d8bcacc90780ce8e91f0b44785d0365ef36d0478
Copyright registration time
2026-07-07T02:11:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:54df0f215ed2b87dc761f695091ba7089cfbe7f458ecd334fa755a1d26ec1b79

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.