四次我愛你

Recording identifiers

ISRC

TWA770300115

CopyrightID (CopyrightChains transaction hash)

0xe930159f30e228d1809785ac2780c0d2b9bd1b5fa7ffa7b662077357ff00828d

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:c677ddc7ebc13428163e92d9dbae62c5698ea9b1335f2dce22a78aae09e8b967

• 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.