Lời cuối cho em

Recording by Mai Thanh Sơn.

Recording identifiers

ISRC
QZGCD1804710
CopyrightID (CopyrightChains transaction hash)
0x2181f8aa123c3072f83ee18fd07af38f27ec156ff1084e0882d62c477cd7cadd
Copyright registration time
2026-07-31T23:50:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T00:10:46Z
Bitcoin block
960485
Canonical record hash
sha256:7170f75d54ec43d4a0e7bbf3eb0c9758d60b9df24ecf03bad795f5c356222c15

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.