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Applications

One writable code serves five kinds of use: field and enterprise logistics, postal and parcel, free everyday use with zzThat, digital aliases for blockchain addresses and AI agents, and AI-assisted work across all of them. Three AI principles guide the design. AI is the new UI: a photo, a few spoken words, or a tap replaces forms. AI is the new connector: agents link systems on the fly where a formal integration was once needed. AI flattens the stack: a phone and a marker can do work that once took printers, scanners, and back-office software.

Concept renderings. The panel images on this page show intended use, not a deployed system.

Field logistics

Hand-mark bags, crates, pallets, and mixed goods; read or relay a code; connect it to existing identifiers. Then photograph loose items, prepare a turn-in, compare inventory, and use touch-first actions.

Under the hood, the mark stays simple while its meaning is controlled. In a planned structured profile, zz-X1-X2-X3-zz, the first word selects a schema that sets how the other two are read: X2 as a place or target, X3 as a state or discriminator. Each organization keeps its own versioned dictionary, so the same three words can mean electrical equipment, Building 4, inspection required to authorized users and nothing to anyone else. Recognition runs on the device first and is kept separate from interpretation, which the resolver grants only after authentication and authorization. Each resolution can return a signed receipt, and handoff events can be anchored to a distributed ledger for chain of custody. Merkle-committed dictionaries and zero-knowledge proofs are on the research roadmap.

Postal and parcel

Write a reference directly on a parcel; photograph loose items and receive packing guidance before choosing a parcel code.

  • Stacked UPS, DHL, and FedEx Express shipping labels. The FedEx Large Pak label shows From: PAC-987-654-3210-XYZ and To: PAC-123-456-7890-QTR.
    Concept illustrationOne super identifierCarrier labels that can carry one zz-Code ID.
  • Three envelopes. One shows a long code, PAC-987-654-3210-RSR. One has zz-USPS-123456789-UK in the stamp area. One has zz-hat-more-921 handwritten above the address.
    Concept illustrationHandwritten postage codesThree letters, three ways a zz-code could serve as postage (concept).

By appending a single 'super identifier' to legacy systems, we create a unified data node system to give current analog logistics the new digital-smart AI solutions and network. In the above, in theory, a FedEx overnight shipper can only put the zz-Code ID on the package and its deliverer in the fulfillment chain in anonymous, until the final touch with the receiver.

End-to-end anonymous concept use cases

The merchant never receives the customer's personal data or payment details, only a zz-code and a security code. Nothing personal appears on the outside of the package. The customer picks it up at a drop-off store by giving a secret code or signing with a private key.

Concept illustrations. These panels show intended use, not a deployed system.

  1. A woman on a sofa orders on her phone. A panel beside her shows a cart, a shoe, and a delivery option switched on.
    Step 1Anonymous customer orders onlinePurchase: Customer selects reduced-exposure delivery.
  2. A warehouse worker in gloves handles a box on a conveyor. The box label reads zz-apple-sky-5678-zz.
    Step 2Merchant ships only with the zz-CodeFulfillment: The parcel displays only a shipment reference.
  3. A courier beside a delivery van checks his phone while holding a box labeled zz-apple-sky-5678-zz.
    Step 3Delivery man only knows drop-off addressLast mile: The assigned courier receives task-limited address access.
  4. A customer holds up her phone at a pickup counter while a staff member hands over a box labeled zz-apple-sky-5678-zz.
    Step 4Anonymous customer gives matching secret code or signaturePickup: A private credential authorizes release at a secure pickup point.

This is an example of end-to-end anonymous delivery to a drop store and anonymous pickup. The receiver would pick up by identification using private-key to the package’s public key.

This reduces potential for customer data breach by keeping customer information including payment account from the merchants’ applications.

Everyday and community

A handwritten code on a lost-cat flyer or other public surface can lead to a useful page.

Concept illustrations. These panels show intended use, not a deployed system.

  • A table lamp with a handwritten paper tag reading zz-1234ABCD-zz, under a For Sale banner.
    For saleA zz-code attached to a lamp (object) for sale.
  • A handwritten HELP WANTED sign on a glass door with zz-1234ABCD-zz written below.
    Help wantedA help wanted sign with the zz-code.
  • A handwritten EVENT CANCELLED sign reading zz-123XYZ-zz on a door. A phone beside it shows the zzthis app: Code recognized, Event Update, Event Cancelled.
    Event cancelledAn “Event Cancelled” sign with the zz-code.

Concept illustrations. These panels show intended use, not a deployed system.

  • A table sign reading zz Guest WiFi connect zz with a Wi-Fi icon. A phone shows the zzthis app opening the guest Wi-Fi details.
    ConnectA sign code opens guest Wi-Fi details.
  • A table sign reading zz Maria flea market booth 12 zz. A phone shows the zzthis app opening the vendor page with items, a pay link, and contact.
    Shop / PayA booth code opens the vendor page.
  • A table sign reading zz Hacker Dojo donate 11 zz. A phone shows the zzthis app opening a donation page.
    DonateA sign code opens a donation page.
  • A wooden trail sign reading zz-TrailInfo-zz, Trail Info Code, with a hiker nearby. A phone shows the zzthis app with trail updates, a check-in, a safety alert, and a map.
    Concept illustrationTrail markerA trail marker tags in the park that visitors can scan and update with their posts, etc.

Concept illustrations. These panels show intended use, not a deployed system.

  • Infographic titled Share: readable short codes for everyday sharing. Example codes: zz Alex photos wedding zz, zz Maya resume zz, zz Sam playlist zz.
    ShareWedding photos and other everyday sharing with a zz-code.
  • Infographic titled Community: make flyers actionable without forcing a QR code. A lost dog flyer and a block party sign, with codes zz Lost dog maple street zz, zz Block party RSVP zz, and zz Free couch pickup zz.
    CommunityLost dog and block party signs with a zz-code.
  • Infographic titled Handwritten works: no printer, no QR generator, just write the code. Signs for a lemonade stand, a garage sale, and a lost cat, with codes zz Lemonade stand pay zz, zz Garage sale map zz, and zz Lost cat help zz.
    Handwritten worksLemonade stand and lost cat signs with a zz-code.

Businesses

Businesses can convert their product names with the scannable zz-Codes.

Real photos.

  • Before: yellow company tape on a red post reading 510-786-2004, Western States Tool & Supply, 1950 Alpine Way, Hayward, CA 94545.
    Before: product tape with a phone number.
  • After, with the banner After with UZZ / zzthis: the same yellow tape now reads zz@-WESTERN-STATES-zz, Tool & Supply, 1950 Alpine Way, Hayward, CA 94545.
    After: the same tape with a scannable zz-Code.

A commercial moving truck signage has a zz mark added to it, and people can scan it for the information.

Real photos.

  • Before: a box truck with Filco Logistics LLC signage, Professional Moving & Staging Transport, and a partly blurred phone number.
    Before: printed company signage on a cargo truck.
  • After: the same truck signage with a capital-letter zz mark added before the phone number 650-460.
    After: a zz mark added so people can scan it for the information.

Digital aliases

A short human-readable code can stand in for a long machine address used by software agents.

Deeper blockchain/AI architecture can grow into a later page.

  • An acrylic desk sign reading zz-vitalik.eth-zz, Wallet / Contact Code, with a QR code. A phone shows the zzthis app with zz-vitalik.eth-zz marked Verified and options to connect a wallet, add the address, save the contact, verify on-chain, and pay or tip.
    Concept illustrationWallet addressAn Ethereum ENS address being scanned by a wallet with a zzThis function.