Tänk, när en gång

Recording by Lennart Jernestrand.

Recording identifiers

ISRC
SEVPA5002607
CopyrightID (CopyrightChains transaction hash)
0xd4df9d2bcc9f1c3da74ebf9602a90c9a9cd0d36e925b7aaaba7834ab19191ee2
Copyright registration time
2026-01-28T21:49:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:aa1939232ec7ae3adc3ec4bd80ad6d3327334c27b1b92f6eec8ea1904ea3b27a

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.