No. 17 in D Major, Op. 35

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199201204
CopyrightID (CopyrightChains transaction hash)
0xe63df2ffb8072c749c1c3eca48cfdd398d7d540f0be7c7a5fa5c7ad763709df9
Copyright registration time
2026-06-25T06:52:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:163f293b1c51363d3a46f9dd2f7683ed8fda78c4eea062cf0901add5f47fb6df

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.