Song of Lament

Recording by Guo Gan - Chinese Erhu Master.

Recording identifiers

ISRC
ITI401800057
CopyrightID (CopyrightChains transaction hash)
0x55753898f24e921600b9d05d9ac6e383417abac90dfd728aa92a3ac6e0d9b5b6
Copyright registration time
2026-07-07T01:29:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9e8bf09acab55fdda6ea825da418e7dcebc30b60fd296a8ab85f3e7514dcb3b7

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.