Kottbusser Tor

Recording by Billow Observatory.

Recording identifiers

ISRC
QMGEB2309101
CopyrightID (CopyrightChains transaction hash)
0x11b81447649dcb202c816e9907d3be94ca7621d7f476ca8bc1fcfd7f7e1b4eca
Copyright registration time
2026-07-30T07:33:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T07:48:45Z
Bitcoin block
960222
Canonical record hash
sha256:68a957e1740c72abc6f23007340d120c42d05050a105e07e1e61fa8fac0e9176

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.