Berlin

Recording by Calle 24.

Recording identifiers

ISRC
USDXS2303751
CopyrightID (CopyrightChains transaction hash)
0xca176842f81d51b4ad52a2f82f61decb5724625b34aa3f9f0d5a341508e53241
Copyright registration time
2026-06-01T17:03:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:31451ca456115313d3443266c660b670e08398e744bd38fc8f0863351e599131

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.