Ekko

Recording by Marcus & Martinus.

Recording identifiers

ISRC
NOAJR1500006
Release date of the album this recording appears on
2015-11-06
CopyrightID (CopyrightChains transaction hash)
0xcd8e17b35bb2691941e98f24bef9b83265c1abf188540c3481faa64ea402bf7a
Copyright registration time
2026-06-04T15:37:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:2b010e930ca842221805d5683fccab46ff765a9547839a7755e109057616f1df

What this proof establishes

This recording was released in 2015, 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.