Happy as the Day Is Long

Recording by Duke Ellington.

Recording identifiers

ISRC
USSM10801461
CopyrightID (CopyrightChains transaction hash)
0x7700be4629680697d333a0d18a62077a64ea4efc17cbc838206d02fc47420c81
Copyright registration time
2026-07-31T19:56:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T20:22:46Z
Bitcoin block
960459
Canonical record hash
sha256:419726ae76277228e0d1af14c334c86344a90294a7ec1f5fe4edeb158675bfcc

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.