How Long

Recording by 王大痣.

Recording identifiers

ISRC
TWCT52323487
CopyrightID (CopyrightChains transaction hash)
0xafaff2bd141df340ee200eeb51f6f90eff63ab97427e7a5287adb8194e363c3b
Copyright registration time
2026-07-07T02:49:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:77364e5de3fcd547c5d9bbdf7ce84426019ba0ea34c51be3002e7fdf41ca0277

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.