Bertha

Recording by Ernesto Cortazar.

Recording identifiers

ISRC
USTC00961466
CopyrightID (CopyrightChains transaction hash)
0x22989e9335b961ced88b3212b262e164f1408deaf96faaa334d7ae1e950013ba
Copyright registration time
2026-07-06T09:04:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-13T07:53:33Z
Bitcoin block
957819
Canonical record hash
sha256:2e773f9a5d27def430f37de71efb77f6c9574f6bffa3c95de2822071ef474f2d

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.