Cavatina

Recording by John C. Williams.

Recording identifiers

ISRC
USSM19602692
CopyrightID (CopyrightChains transaction hash)
0x378d392766059dc08a1cee372137cc00219d92a2abbf650ddca4bcaaa6fd5456
Copyright registration time
2026-06-08T18:51:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a0b9ef9f3680a5801c9c2c472ecfa9ca74bd16e3f2d3bed03665a1a7961923f5

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.