Sonata No. 2 For Cello And Piano

Recording identifiers

ISRC

US4QP0765514

Release date of the album this recording appears on

2007-01-01

CopyrightID (CopyrightChains transaction hash)

0x79e923559b7f70bf73993a395a504c2109a544432a1970ae38b7741d38d2b7c4

Copyright registration time

2026-07-22T13:47:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-22T14:03:35Z

Bitcoin block

959137

Canonical record hash

sha256:b81e1bb2a12c9042f0804612561fb2ca27301b398d0820afb38c1edc8eab1f90

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US4QP0765514

What this proof establishes

This recording was released in 2007, 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.