Short answer
By measuring each exposure at the source and sealing it (SHA-256 hash, eIDAS timestamping, Hedera anchoring). The advertiser gets a verifiable total, computed on real events, not an extrapolation.
How do I prove to an advertiser the real number of views of my campaign?
By measuring each exposure at the source and sealing it (SHA-256 hash, eIDAS timestamping, Hedera anchoring). The advertiser gets a verifiable total, computed on real events, not an extrapolation.
Is panel-based audience measurement reliable for my small media?
Panels (Médiamétrie, Nielsen) extrapolate from samples: reliability drops for small media. Source measurement counts every real exposure, without sampling.
Can I get a verifiable audience attestation without paying an institute?
Yes. Continuous sealed measurement produces a verifiable audience attestation, at a flat cost (€1,500/month), without relying on a certified measurement institute.
How do I keep my audience from being a statistical extrapolation?
By measuring each exposure individually at the source, then anchoring the total. The data is factual and verifiable, not extrapolated from a declarative panel.
Who can verify my audience figures independently of my own tool?
Any third party holding the hash: advertiser, ad network, auditor. Verification is done by recomputing the hash, without accessing your measurement tool.
Can you measure real audience rather than an extrapolated panel?
Yes, that is the principle: source measurement of each exposure (read, listen, view), sealed and anchored, producing verifiable real audience — distinct from panel-based measurement.