Grand Solo in D Major, Op. 14: Introduction. Andante - Allegro

Recording by Fernando Sor.

Recording identifiers

ISRC
NLY331700067
Release date of the album this recording appears on
2017-02-03
CopyrightID (CopyrightChains transaction hash)
0xb12278d1c98a0a8fedd78b310244b54b0f91428a85545a8b510b366c26fe6c84
Copyright registration time
2026-07-30T23:08:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:cfd79fdf2899efc97ae33ec5bf153874a0b174a90abea10297c627f2b78904f5

What this proof establishes

This recording was released in 2017, 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.