Jockey Polka, Polka schnell, Op. 278

Recording identifiers

ISRC

USSM10308408

Release date of the album this recording appears on

1989

CopyrightID (CopyrightChains transaction hash)

0x6f190877fb3592d3ffd233f0d28f9b310f34b662e32b0c610de7fa0f4d4e40a2

Copyright registration time

2026-07-30T03:12:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T03:35:13Z

Bitcoin block

960203

Canonical record hash

sha256:5125e78d0aa93326c04944eb6fe30d11ce39a94f9cb5281d82c6306b8c3e3015

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM10308408

What this proof establishes

This recording was released in 1989, 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.