對話練習

Recording by Zhang Qing Fang.

Recording identifiers

ISRC
TWB510432404
CopyrightID (CopyrightChains transaction hash)
0x52df841ce084f619f80fd2892843afeb10d44d621536d60d11592c99cb26c763
Copyright registration time
2026-07-06T05:52:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:8c35403d302aa8436cf00e97de82ad0ec9b8e53cd64e5dcda115d8e9a025b931

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.