Letter to Bashar

Recording identifiers

ISRC

CA5KR2206145

CopyrightID (CopyrightChains transaction hash)

0xf2a06c488c8bf7e3b3008f6348af134ca7d514be90be2536ddeee5711b9a9859

Copyright registration time

2026-07-30T08:27:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T08:30:10Z

Bitcoin block

960229

Canonical record hash

sha256:05eaa42dae0d3140e5ae922979493d6e948a4b132e3b2594e81fba80f0bcfe32

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.