Waltz #2

Recording by J Mascis.

Recording identifiers

ISRC
USF461600036
CopyrightID (CopyrightChains transaction hash)
0x9f8ee3949e8c0aefbd4195ed543f0fcd1d359d7cb342c3c1f9f1ac7a96d30ccc
Copyright registration time
2026-06-24T17:19:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:dc2f0fefd791f04d221a2b24038c88467231b17f3ac5f65ccb31417b3ad6579f

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.