Speak Low

Recording by Arturo Sandoval.

Recording identifiers

ISRC
USC4R1021310
CopyrightID (CopyrightChains transaction hash)
0xe64b70caaa3bfa2aea09a4774f2a3056d287b54ad69074e26e378750c371932b
Copyright registration time
2026-06-21T04:25:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:fdd7cf1b30c6727486c752d649d8ce2aea4d30f5c8fbfe8968a0135730718892

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.