Liên Khúc Vũ Thành An: Bài không tên số 2, Bài không tên cuối cùng

Recording identifiers

ISRC

QZGCD1803987

Release date of the album this recording appears on

2010-01-01

CopyrightID (CopyrightChains transaction hash)

0x7ea937331aff47c1fa6a586c3b18709e098ca4927af3349f84a8465f92efc481

Copyright registration time

2026-06-18T22:13:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:ecaf623a3dfbb90355ffb8a4086e5739d4deef1ed3f084da1bd3dbfc5aa2c9b9

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QZGCD1803987

What this proof establishes

This recording was released in 2010, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.