7 Pieces, Op. 63: No. 1, Notturno

Recording by Maurice Karkoff.

Recording identifiers

ISRC
SEBAA1302301
CopyrightID (CopyrightChains transaction hash)
0xc6989e9951d762cf88aabf19dd33fb39d1356d87156ca5cdf1f22db8717bef92
Copyright registration time
2026-01-28T20:13:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:0508e9e11af3dbff1d9053127c40bc04b9d21048ea7b1ca303cea7fd580017ab

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.