Sunny Sunday

Recording by Joni Mitchell.

Recording identifiers

ISRC
USRE10100255
CopyrightID (CopyrightChains transaction hash)
0x9f111d119c21444cd5ba58a0397e23671012bb6c8d75f5e3164629cf48212b71
Copyright registration time
2026-06-06T01:07:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:4623173f3a3c5a7c6306bd6532d46070f372d86af4bb52e02bfc75f89270d7a7

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.