Experiences No. 1

Recording by John Cage.

Recording identifiers

ISRC
ITP901300020
CopyrightID (CopyrightChains transaction hash)
0xee2658250198678af328c3af094ac901cc4db94f1e08f23e9bc835ae976e7184
Copyright registration time
2026-06-20T03:10:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fc8123a74b54903a0a530dd9e2567b1c7fd868be49721054e1ea353c90da3d08

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.