O Crux

Recording by Fernando Sor.

Recording identifiers

ISRC
CH6630274306
CopyrightID (CopyrightChains transaction hash)
0x06ba2c08fe80e8a2b3e12daee27320f0d887456e50a800854ccc2c249ea2c340
Copyright registration time
2026-07-30T22:45:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:48860464c51682f775672f74b11b92eb902861dfceab6c6849f17b90d18570db

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.