Come Sunday

Recording by Duke Ellington.

Recording identifiers

ISRC
DKEFA1700114
CopyrightID (CopyrightChains transaction hash)
0x9ee8fdc0f5631b60a0c416df3fc0cf6bbf1d0568da654101958c38f7c6975840
Copyright registration time
2026-07-07T04:55:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:17db41ac5b2e633c971cedc6d5773fd6b2d5f8b3b0f37d77e2b0af69e4ce75ef

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.