斤兩十足

Recording identifiers

ISRC

HKUM70900409

Release date of the album this recording appears on

2009-01-01

CopyrightID (CopyrightChains transaction hash)

0x8857e7bde529bb9e93e9dee073320b708170f143a0dbb5e073ddc88ba41d06f3

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T03:50:58Z

Bitcoin block

960506

Canonical record hash

sha256:f0984440bab97c0730831272dcf7c3d187d569ac1e9982411887b2f7c5b2f877

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKUM70900409

What this proof establishes

This recording was released in 2009, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.