Suite for Piano & Orchestra (Jazz Suite): III. Polka

Recording by Alexander Tsfasman.

Recording identifiers

ISRC
US23A1561967
Release date of the album this recording appears on
2023-04-28
CopyrightID (CopyrightChains transaction hash)
0x3e3a889263fb7124b70cc41d2acc630a365f08c0c7ba0484a171270226c3c033
Copyright registration time
2026-07-07T11:44:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9904c529c5e08f13c26269ef4fc96492b5637c077d13334882834e8ac3eeab07

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.