Chiếc Lá Thu Phai

Recording by Trịnh Công Sơn.

Recording identifiers

ISRC
FRX282476985
CopyrightID (CopyrightChains transaction hash)
0x236f0574fbea0ae60228c7259fd77e64a489b181854ce0067d57ac4e447e1ae3
Copyright registration time
2026-07-08T01:45:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:2ebda7b24ff8bcafc912193bb4659dc814607df0bf0def2fccd5ca18032f4b55

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.