Bookkeeping Class

Recording by Michael Brook.

Recording identifiers

ISRC
USLS51555209
CopyrightID (CopyrightChains transaction hash)
0x92989d26bffd63f251950b4e34426da1f46d26997ad2db07f1677e076c28564c
Copyright registration time
2026-07-05T10:42:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:ca6eac4c1135a02f877d4aa0d2f8d0dc9d96d99bdf28ae46fa8e86d9775c77e1

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.