双面

Recording by 李琦.

Recording identifiers

ISRC
FRX872155402
CopyrightID (CopyrightChains transaction hash)
0xc5d362c266f36bde17252bd3c07f3586328dd1ce92fa5abd853f75a63e555e4f
Copyright registration time
2026-07-31T07:49:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:c38e78294a6c9a264140a4ebd798b9d26a75bbb951d4462c93eab93d5863a1e4

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.