Ninety Nine

Recording by Sonny Boy Williamson II.

Recording identifiers

ISRC
ES31E2305980
CopyrightID (CopyrightChains transaction hash)
0x2acab831c4b17fc6a4f0e971f2f3df04bb32ccc7a4e18e7bede1d9bcd9b519bf
Copyright registration time
2026-07-07T02:36:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:81b4063ab07c1bc93dba27b4ca6fe5c835d3951c497ecf759c1ad88dabfc1e2d

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.