Cello Sonata in B-Flat Major, RV 45: I. Largo

Recording identifiers

ISRC

ITS611319601

CopyrightID (CopyrightChains transaction hash)

0x55b964a999fc41bcb47830ef9c44f7d323f6b7a256f5328ec35fa1d43c2da152

Copyright registration time

2026-07-30T22:20:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T00:26:26Z

Bitcoin block

960327

Canonical record hash

sha256:87dd90f047b02dabe6c0844ba4b74ce3850818c18928718c767db5cdab8a9451

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.