Blue Skies

Recording by Ella Fitzgerald.

Recording identifiers

ISRC
USPR35800053
CopyrightID (CopyrightChains transaction hash)
0x1ec5c15edaf3782f8169c4e8306613d2919e9866dceb5757600afdd7378d1062
Copyright registration time
2026-06-20T03:15:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:c86edb86d045c8afcfa7c85bd4bed9b6da15d1d8fc16673f9fd0605379dc9c6b

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.