O crux

Recording by Fernando Sor.

Recording identifiers

ISRC
ATH071418906
CopyrightID (CopyrightChains transaction hash)
0x9e14664f4af8b22324f1fe27b3417a479d3bfc347a8be9f092b6c8921e661e63
Copyright registration time
2026-07-07T16:10:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:ce5fdce4aabdcfd96c2197b8f27fc47359db55befd98ca880299996c715cc7db

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.