Take It Easy

Recording by Duke Ellington.

Recording identifiers

ISRC
USSM10021603
CopyrightID (CopyrightChains transaction hash)
0x7f32a7163ee521c7d4aec099109c95f2fe9a2723ae333a25dd5147019337aee1
Copyright registration time
2026-07-31T09:31:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T09:50:11Z
Bitcoin block
960381
Canonical record hash
sha256:39090b06486baf4078327090dc1e709e9db89c018b92f25531525e7f4b128e3d

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.