The Seasons: VII. Prelude 4 - Live

Recording by John Cage.

Recording identifiers

ISRC
DEN962300657
CopyrightID (CopyrightChains transaction hash)
0xc4acbf88cd9fbdfd7d76b95a38c2ac28189713390385b6594fef2159eb85e867
Copyright registration time
2026-07-06T23:13:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:db04f4444d779858eee67b6b32dccdab49e40534acecce0703445809ff692029

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.