Mazurka in G Major

Recording identifiers

ISRC

USBC10100488

Release date of the album this recording appears on

2005

CopyrightID (CopyrightChains transaction hash)

0xa353acdc4665e22ba7bf929a63c1a4d3edc64c114f468f469e74a19fa3d0b388

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:51:35Z

Bitcoin block

960481

Canonical record hash

sha256:3c02ff3777c6944e8e6126719a8aa9ec74cfa7f0747b6c5892cc11ebec3b3347

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USBC10100488

What this proof establishes

This recording was released in 2005, 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.