Part 1/ IBM 1401 Processing Unit

Recording by Jóhann Jóhannsson.

Recording identifiers

ISRC
GBAFL0600199
CopyrightID (CopyrightChains transaction hash)
0x619ca17d8a38ea8e99cbe06d5a666d1738e57545e0538b029feab5a7e9cf16b1
Copyright registration time
2026-06-25T20:40:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:399fc0e333bc5187fbaafcedd7ccd31dde0f61c3af8041acbb5cbc4a633feb42

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.