Samtidig

Recording by Halvdan Sivertsen.

Recording identifiers

ISRC
NOBBZ0101070
CopyrightID (CopyrightChains transaction hash)
0x7b945bb49394b15e791415afa640b0b85a93d97e400684d717892d3883e90e40
Copyright registration time
2026-06-21T11:25:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:7cd3e5ada867a3781f6e2620b5736f63526d32b13dda134383d7eca0d5b4ea91

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.