Blue Bubbles - Take 2

Recording by Duke Ellington.

Recording identifiers

ISRC
USBB19900029
CopyrightID (CopyrightChains transaction hash)
0x970b48a97d75688378a9aa4ed5c28729721dcdf72abd680d3bf32f10759b1b54
Copyright registration time
2026-07-31T08:46:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T09:09:19Z
Bitcoin block
960376
Canonical record hash
sha256:db30fb722768d81c2f4d64104d1a56ceb970a282c99a662465d2cc846b484931

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.