Polonaise No. 3 in A Major, Op. 40 No. 1 "Military"

Recording identifiers

ISRC

DEF057801210

Release date of the album this recording appears on

2010-01-01

CopyrightID (CopyrightChains transaction hash)

0xe910d64c9a09def19b652685e058bf853b65f1d3c6c326291bd95ffdae433e19

Copyright registration time

2026-07-07T06:59:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:55482275bbe0aa8ce788ac178fcaeebe9893ca60f43b140d72fd7bc441b70195

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057801210

What this proof establishes

This recording was released in 2010, 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.