Cô bé u sầu

Recording by Hà Thanh Xuân.

Recording identifiers

ISRC
QZGCD1808356
CopyrightID (CopyrightChains transaction hash)
0x6ac6db10b2fe803bea3756efb9a16f05b59c5918f96266e996aa0e1a2948d555
Copyright registration time
2026-07-07T05:04:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ab19442601c36e5ec02ec17db15b40a1ef2bd71283a4525020619dd8ca189d1a

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.