左右手

Recording identifiers

ISRC

HKUM71200091

Release date of the album this recording appears on

2012-01-01

CopyrightID (CopyrightChains transaction hash)

0x7988949941c360e30aded811d0a5f6a5406c1ae843c6514d605cc3ace62fb353

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:670498d5fd13c29538120e6c231111fee0d56197e0afdebbe2fa7b7b260f9f69

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKUM71200091

What this proof establishes

This recording was released in 2012, 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.