Two Rondos for Piano, Op. 51: Rondo in G Major, No. 2

Recording identifiers

ISRC

CALC41601092

Release date of the album this recording appears on

2016-09-09

CopyrightID (CopyrightChains transaction hash)

0xc1b47ab7b9236ddf8d642fe4be2ca88e07c8f6fed86b4d0a38a9b786f628f292

Copyright registration time

2026-07-07T22:53:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:fffe19e2f813915082595a59e62bf473026cebd1460ac0ffd0609b1d598446e0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CALC41601092

What this proof establishes

This recording was released in 2016, 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.