Quốc Tình Ca

Recording identifiers

ISRC

VNA1M2286706

CopyrightID (CopyrightChains transaction hash)

0xeec5e623bd215f12b3b119ae8586cc031e688760c93c24721d70468e4f9fd86e

Copyright registration time

2026-07-30T03:50:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T04:47:22Z

Bitcoin block

960207

Canonical record hash

sha256:f284b18368413f99e92b01ed277d40fbd6e935e0479a107de48ab1f4b6a61a57

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.