Tình Thôi Xót Xa 2

Recording by Nguyễn Hồng Nhung.

Recording identifiers

ISRC
CA5KR2028813
CopyrightID (CopyrightChains transaction hash)
0x40e619438067768ce0a8ba37190abd3c5d3c2bb956ded533522f154ea50fa9a3
Copyright registration time
2026-07-07T09:22:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2522ce590e0f0d68d601cf9009aae8637834fdf5e552b65379b216029f7235cf

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.