I Know

Recording by Sonny Rollins.

Recording identifiers

ISRC
USFI85100049
CopyrightID (CopyrightChains transaction hash)
0xda90cf5b547a63b61b4824449be7273527c3967099b065b2cc816a5c5e8b484c
Copyright registration time
2026-06-10T16:15:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e475d76944b7cca724d8b4583e9fc98ddca805dba50140527be1b03e709f761c

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.