Billy, Bobby und Jack

Recording by Ludwig Hirsch.

Recording identifiers

ISRC
ATUM70800068
CopyrightID (CopyrightChains transaction hash)
0xec81bb6746bb75c5a5600ca83573de99043030e79c487a12e2747054a5787ac9
Copyright registration time
2026-07-06T08:16:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T12:58:18Z
Bitcoin block
957039
Canonical record hash
sha256:44fd680033eb89f12371ea9183e4eb5ae5b6afff8bc63b70578f866e241670a6

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.