Attestation

Un système d'information répond au présent. Bloch demande depuis quand — et cette question a un coût technique précis : une date de mise à jour globale, la plus rassurante des affirmations fausses, et un historique qu'on a coupé nous-mêmes.

Marc Bloch ne demandait pas si un document dit vrai, mais ce qu'on a devant les yeux. Ce que cette question a coûté à écrire dans notre code : six statuts, un vocabulaire fermé, et un cadenas qu'on refuse de poser.

Herbert Simon, bounded rationality: four seconds facing thirty options. The label is a rational shortcut — but it still has to be decompressible.

Michael Spence (Nobel 2001), costly signaling, and what separates proof from a promise: why a label anyone can slap on no longer signals anything — and how proof changes the game.

La mort de Kochtcheï est dans une aiguille, dans un œuf, dans un canard, dans un lièvre, dans un coffre. Ce que le conte dit d’une fiche produit : copier ou relier, qui tient la dépendance, et pourquoi notre vocabulaire connaît 69 propriétés pour un seul vrai verbe.

L’oiseau akan avance en regardant derrière lui. Ce que cela demande à un registre : deux axes de temps au lieu d’un, des corrections qui n’effacent pas, et une limite — le droit à l’oubli.

Une information peut être exacte le matin et dangereuse le lendemain sans que personne n’ait menti. Ce que la banquise apprend sur la péremption d’une vérification — et sur le voyant vert qui ne devient jamais gris.

Chez les Oghouz, l’enfant n’a pas de nom tant qu’il n’a rien fait. Quatre rôles séparés, un nom qui contient sa justification — puis quarante hommes qui le détruisent en deux fois vingt. Ce qu’un registre doit à celui qu’il a qualifié.

What makes a proof is neither sincerity nor precision, but continuity: a chain of transformations in which every link remains reversible.

Origin or path? From the local-versus-commodity duel to the carbon credit: why a tonne is worth what its place is worth, and what an index changes about a credit.

Une affirmation a circulé neuf ans avant qu’on puisse la vérifier. Ce qui l’a fait tomber n’était pas une autorité : c’était une police de caractères restée dans un tableur.

Un système de preuve fait trois choses distinctes. Pourquoi la signature vient d’abord, pourquoi relier fait le vrai travail, et à quel moment une chaîne devient nécessaire.

Sign, reason, singular: Spinoza’s three kinds of knowledge applied to a tomato — from the label to the verifiable product passport.

Ceremony or substance: with Spinoza, why a declaration of conformity is a rite — and how proof finally shows what the standard truly wants.

Regulation (EU) 2023/1115: products covered (cocoa, coffee, wood, soy, palm oil, cattle, rubber), DDS obligations, geolocation, 2025 timeline, penalties of up to 4% of European turnover.

eFishery reported 400,000 connected feeders at the edge of its ponds. There were 24,000. What its collapse says to anyone who sells traceability.

Floor app, proof platform, ERP module: what each family does well and badly, the six questions that commit a vendor, and how to read a quote where the advertised price is almost never the price paid.

What an inspection actually asks for, what you can digitise without changing everything, how to structure records so they hold up under scrutiny — with a starting checklist.

Regulatory thresholds by product family, where to place sensors, how to alert before a break rather than record it afterwards — what an inspector looks at first, and the mistakes that invalidate a record.

What “electronic invoice” actually means, who is affected and when, what you need in place before the deadline — the French reform explained without jargon, with a preparation checklist.

Triman, sorting information, packaging EPR, the phased ban on single-use plastic — what already applies, what remains unclear, and the labelling mistakes that come up most often.

30 December 2026, and 30 June 2027 under conditions. The EUDR has been postponed twice — and the second postponement also lightened the obligations: downstream operators no longer file a statement.

The French national food conference, organic thresholds, limits on promotions, a vegetarian menu: EGalim brings together several distinct obligations that came into force on different dates. The full overview, without jargon.

Mandatory assessment, donation agreement, a ban on making unsold food unfit for consumption: what France’s EGalim law actually requires against waste in collective catering, beyond good intentions.

An electronic signature does not carry the same value as a scanned handwritten signature. What the law recognises, and what distinguishes a digital attestation that can be relied upon from a PDF signed by hand and then scanned.

Who can see your data, where it is hosted, what happens in the event of a breach — the security guarantees to check before entrusting your traceability to a third-party tool, in non-technical language.

Three different logics behind three common logos — the absence of synthetic inputs, overall environmental performance, superior quality. What each one really guarantees, and what none of the three covers.

Document audit, on-site audit, sampling, minor and major non-conformities: what actually happens between the certification application and the logo on the package, from the producer’s side.

Each additional certification has a direct cost and an ongoing management cost, not just an image benefit. How to assess whether a new label brings in more than it costs, before committing.

A “pesticide-free” claim freely chosen by a producer and a label audited by an independent body do not carry the same evidential weight, even when they look alike on a package. How to tell them apart, and why both have their place.