Lesson One

Recording by Chris Joss.

Recording identifiers

ISRC
USA2P1493100
CopyrightID (CopyrightChains transaction hash)
0x9fd363b089a3c24d63c8b2b77f26a97efc7606489b9c8b1d685ee51145db80aa
Copyright registration time
2026-07-07T05:28:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:30630d82bf0a5ee4b08a60124de6b07ccf375df8991786e67a41b059c24a9b94

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.