Zweet Zursday

Recording by Duke Ellington.

Recording identifiers

ISRC
FR8X02301602
CopyrightID (CopyrightChains transaction hash)
0x02998927b476dd9e521767c8623bac27d24acc4ef9dc7a2831203058af3f64bf
Copyright registration time
2026-07-29T13:57:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T14:28:24Z
Bitcoin block
960117
Canonical record hash
sha256:a42c431075ee0265d48c7149dd8f0ad3ecd84a2ad84bd889e54d1b1da2153f5f

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.