Tình xưa xa rồi

Recording by Diệp Thanh Thanh.

Recording identifiers

ISRC
QZGCD1802317
CopyrightID (CopyrightChains transaction hash)
0x386e2846f4db15141df6f7d4ff22f1c009817a1506331285ee6b82ed592caae6
Copyright registration time
2026-07-07T09:01:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:887e70869244dd76c45b596a46ca11c3acddbcfc60a5db596f28e58b3dfb02c0

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.