Organ²/ASLSP

Recording by John Cage.

Recording identifiers

ISRC
SEWDL0739003
CopyrightID (CopyrightChains transaction hash)
0x01da1b641c69912e47c046bf6d6bdf3f16bd8f2d30897975544ec5de0e876845
Copyright registration time
2026-07-07T14:43:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2bffe8401a9dbc4df44f611d2af3edcfe133a3231b846739844f0d81ca43a58d

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.