Symphony No. 1 in D Minor, Op. 13: III. Larghetto

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
GBDGQ1828403
CopyrightID (CopyrightChains transaction hash)
0xff3ef0789dd22a59ebea8ffadf2029a2f5d465517ac4b9e6ccd762696d1f6949
Copyright registration time
2026-07-06T07:38:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T11:43:09Z
Bitcoin block
957032
Canonical record hash
sha256:efd0fed08ba536233695de284b2f931267083a0db8f3b715646937231c2364e8

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.