ワルツ 変ニ長調 作品64の1 「小犬のワルツ」 ［スタインウェイ］
Recording by Frédéric Chopin.
Recording identifiers
- ISRC
- JPU901503894
- CopyrightID (CopyrightChains transaction hash)
- 0x33436e72ddef1a5aed11f210736b88a83af6caaea8a0d0bedf785d381d8fd0f0
- Copyright registration time
- 2026-07-07T12:40:22+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19Z
- Bitcoin block
- 957118
- Canonical record hash
- sha256:ba8ee5737a2094d0d6ba828708fa58838c193a55d12b25a6024dbb1ae3509998
What this proof establishes
This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.