II. Cantabile

Recording by Wilhelm Friedemann Bach.

Recording identifiers

ISRC
HKI191813405
CopyrightID (CopyrightChains transaction hash)
0x8027793c847d882882c88c4a2126990a02611b1d5769bcfe827be0af52ceb517
Copyright registration time
2026-07-06T20:18:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5dfa88792acfb02c4292d500f1021aadbf2ab3318bee1c555c5444338eb2128b

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.