Donna

Recording by Quartetto Cetra.

Recording identifiers

ISRC
ITD019901657
CopyrightID (CopyrightChains transaction hash)
0x02f5e79c35cf7fa754a671f8573f6a87365142736b34dea7e390a9073a54da9b
Copyright registration time
2026-06-24T14:46:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:6b4d2afb9b9ebdf79b8ffb378326b51228d9a84c678aab504cf373554860179a

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.