Zephyro Spira

Recording by Bartolomeo Tromboncino.

Recording identifiers

ISRC
FR9W12434472
CopyrightID (CopyrightChains transaction hash)
0x28656dda8f96ffe1fdeb1c9188fcaf2aed8cd0372af14eee4d9d0b5164b42087
Copyright registration time
2026-07-07T12:08:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f2d51ca6dd966b66ce3f9b49c3f45817844bee2f28743563e1e967857dcfd0c8

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.