庭院深深

Recording identifiers

ISRC

HKC639822815

Release date of the album this recording appears on

2005-01-01

CopyrightID (CopyrightChains transaction hash)

0xcf8f5647d6084b14d9787d8150d0acf1061a9730e81cac85fcbd509c75b03821

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:51:35Z

Bitcoin block

960481

Canonical record hash

sha256:d3c5e039297526f58f655bc008facb4d970aa29597cdc453df97cd19ff731e59

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKC639822815

What this proof establishes

This recording was released in 2005, 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.