Study No. 17, Op. 35: Moderato

Recording by Fernando Sor.

Recording identifiers

ISRC
BRARP0700108
CopyrightID (CopyrightChains transaction hash)
0x4dd2679eeae138387931f964f7d625a897a887c3d405ba94a867112f10ea89de
Copyright registration time
2026-07-07T00:31:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4d20d8ca4fbd45621811f25e83b7684cbdd632e7924fc5ed4c421a8f967e5223

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.