Det er sommer, det er sol og det er søndag

Recording identifiers

ISRC

DKNA21106003

Release date of the album this recording appears on

1954

CopyrightID (CopyrightChains transaction hash)

0xc036ce10a632cc546202a538cc3f4722db16d5a362edb58604971e7aab7fec4e

Copyright registration time

2026-07-07T18:52:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:1bcdfa8208899adc6bd527d73946ed76aadc0b15a3d4daede77bc0a0d36ba777

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DKNA21106003

What this proof establishes

This recording was released in 1954, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.