Schubert: Piano Sonata No. 21 in B-Flat Major, D. 960: II. Andante sostenuto

Recording identifiers

ISRC

GBAYC9400953

Release date of the album this recording appears on

2004-03-01

CopyrightID (CopyrightChains transaction hash)

0x4611c41685139621cea482f0d69393d774568ef9482075ac794793a296e91a2e

Copyright registration time

2026-07-30T18:15:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T18:23:33Z

Bitcoin block

960291

Canonical record hash

sha256:474a86664b9998d95839cb6f783bd366fed0edeaa74909b215158f6b5febe480

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC9400953

What this proof establishes

This recording was released in 2004, 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.