Tossed as it is Untroubled

Recording by John Cage.

Recording identifiers

ISRC
HKI190020407
CopyrightID (CopyrightChains transaction hash)
0x5d0fee68817537dc13c65cc86b6d13a42dd9d4af4de47a8f87317d4ebf31c245
Copyright registration time
2026-07-07T13:50:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:25428e9ac185021d0fde36b6980e01a62ba34cf45d697e32908128249a445684

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.