小姐姐（《楼下女友请签收》影视剧插曲）

Recording identifiers

ISRC

TWDL72009033

CopyrightID (CopyrightChains transaction hash)

0x60cf8413e67202c8e6cda30e2de52af1158a7c1105d49061c63eb94776043662

Copyright registration time

2026-07-29T21:01:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:09:47Z

Bitcoin block

960144

Canonical record hash

sha256:49bb20ab99ea3282b7a6730ec6db8e3c5790e12198e09c0befd98f48eb1bffb8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.