The Book Launch

Recording by David Hirschfelder.

Recording identifiers

ISRC
USSM11607961
CopyrightID (CopyrightChains transaction hash)
0x525b4f1b2df7f253a016085caeb52d3d5ccb1a010091134118b325ac8aa8a21f
Copyright registration time
2026-07-07T09:35:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f42565fc0014e958976c0b9e0cf71b2a17efbadd1d1fdcff60e76ffcc519a3d6

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.