24 Progressive Lessons, Op. 31: No. 22, Tempo di marcia. Moderato

Recording by Fernando Sor.

Recording identifiers

ISRC
NLY331405158
Release date of the album this recording appears on
2014-08-08
CopyrightID (CopyrightChains transaction hash)
0x62d5bec7deaece35e6d9aaf908049e654b592a3b1ed4ff870bcac3964852f0c3
Copyright registration time
2026-07-06T19:54:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2cc4e2e1e2b92707b37ab6356d05830d2ddee0780c3c0e558fef205663c202a3

What this proof establishes

This recording was released in 2014, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.