City Boy

Recording by Calpurnia.

Recording identifiers

ISRC
CAUM81800075
CopyrightID (CopyrightChains transaction hash)
0x4226828384465dc1acf35cc340f66dce7cf0744b4f7f01db0be43de5c579d870
Copyright registration time
2026-06-05T08:30:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:f149997fb3422d15cf366f9739c7e69e5e403aeae7b43d19f9335f4e024f3d02

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.