Wallfisch: Proposal

Recording by Yuja Wang.

Recording identifiers

ISRC
DEN961230705
Release date of the album this recording appears on
2013-01-01
CopyrightID (CopyrightChains transaction hash)
0x3f8aec8a179420c895686dd47c3e800ca623a14574ef68858eba92f7040a4a6b

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T02:19:15Z
Bitcoin block
960334
Canonical record hash
sha256:770ccf6b0bcb693005e5a8871c1da3fd25aab10434c8ea10636ed5a54f6a282e

What this proof establishes

This recording was released in 2013, 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.