Masurka
Recording by Oddvar Nygaards Kvartett.
Recording identifiers
- ISRC
- NOAGW1500500
- CopyrightID (CopyrightChains transaction hash)
- 0x0b04a4c33e33321e6e6992276a23d4a9d6002342aa5aa4765656ab9218683d90
- Copyright registration time
- 2026-08-01T01:49:47+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T02:22:04Z
- Bitcoin block
- 960497
- Canonical record hash
- sha256:64ae98ea33fad1777809c4e90ed787f0d7743c895c5b6af03facbe01505b5fa4
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.