舊夢不須記

Recording by 張偉文.

Recording identifiers

ISRC
HKC630300520
CopyrightID (CopyrightChains transaction hash)
0xcde8fd20a780d2f2ebc1f7484d3cb987eca99eba2332287f5a0dc3a7ab25fd2c
Copyright registration time
2026-06-22T05:39:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:0f3d6c429fe302ab0b071a321288aee069113e154533fdd275846b0e903b8e09

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.