Lời Cám Ơn

Recording by Hợp Ca Thúy Nga.

Recording identifiers

ISRC
QMBZ91911743
CopyrightID (CopyrightChains transaction hash)
0x0e812ac7d4cc808469e09d455f822576bce5773de4e1222f87b7aeb98f3e578a
Copyright registration time
2026-07-30T23:25:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:fcb7912b61f00b868709fce5b48b97b5c672cb7e2764af67814508195df839cc

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.