Letter to Home

Recording by Michael Brook.

Recording identifiers

ISRC
USLS51555212
CopyrightID (CopyrightChains transaction hash)
0x97c667e57be2ff867f563f3791e621ba2e7b9fbf26f7c2e92c2be62fbcba33ca
Copyright registration time
2026-07-04T09:43:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:750962ff565e554c67ffeea6b287127a09e14c4763e45c0f1953413133cc7f6c

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.