Mai Toi Di

Recording by Nguyễn Hồng Nhung.

Recording identifiers

ISRC
USHM81520597
CopyrightID (CopyrightChains transaction hash)
0xf9d85885f6e834593b861b7c9d045f69d68097a53636f8b1757c4d3d617b4479
Copyright registration time
2026-07-07T07:48:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2caa77bd9c88183a4815456eb451556f14d0815935f325a476b63c90ba07dd29

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.