Massachusetts

Recording by Václav Neckář.

Recording identifiers

ISRC
CZA166800215
CopyrightID (CopyrightChains transaction hash)
0x3ba6546b26e2d3fb497a9f6cf79b93564be83c9fbb52fb776f9dcafa092f910d
Copyright registration time
2026-06-19T15:22:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:766b62f878d26dbab7f05c6b8402a70767ce752fc100732080fdd6748f7f64f5

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.