友情歲月

Recording identifiers

ISRC

HKD049800013

Release date of the album this recording appears on

1998-06-29

CopyrightID (CopyrightChains transaction hash)

0x60c7eeb8076928f7597aacd15bab6f02a98f61921f4f333eed18cb83b187ee10

Copyright registration time

2026-06-04T11:23:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:fca46fec23fa01139315997bc3198fc7db4c4ad0494715edc2c14d4fa72ed50a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Download the anchored registration record (its SHA-256 is the canonical record hash above)
• Recording evidence summary for ISRC HKD049800013

What this proof establishes

This recording was released in 1998, 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.