Swinging

Recording by John Cage.

Recording identifiers

ISRC
US4BP2132701
CopyrightID (CopyrightChains transaction hash)
0xe02cace714f1d70d99ebeb29c19c4bccb15fe432c7005045338a7291977bd194
Copyright registration time
2026-07-07T11:12:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:360b5218b29b19a809622ad7ac3f95fec81e4a5c77f1de3ba53e0667b83e7f26

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.