Marketplace / Dynamic lots
Real world asset auction marketplace.
The public storefront is now sourced from PostgreSQL rather than a hardcoded catalog. Active lots remain visible while completed settlements are filtered out and moved into the winning wallet’s private profile.
Lots / 4
Visible lots
4
Bidding
4
Reveal
0
Settlement
0
Sign in with Solana to create lots and unlock the private profile route for purchased inventory.
Contract / Cc7B...sNBx
Test 011138ufwf29yf92173yrf932ypr23ur8upo23ur8213
Seller
FH2J...ZKso
Contract
Cc7B...sNBx
Created
Apr 7, 2026, 3:53 PM
Updated
Apr 7, 2026, 3:53 PM
Issuer
FH2J...ZKso
Contract / 3B6M...grrp
Tech PatentThis image shows a technical patent document featuring detailed diagrams and structured descriptions of an engineering system. It outlines the design, components, and functional relationships within the invention. Such patents are used to protect intellectual property and provide a precise blueprint of how a technology works, serving both legal and technical purposes.
Seller
F5yS...zrVM
Contract
3B6M...grrp
Created
Apr 6, 2026, 6:52 PM
Updated
Apr 6, 2026, 6:53 PM
Issuer
F5yS...zrVM
Contract / H1tT...Kv9P
EUV PowerThis image shows ASML’s Extreme Ultraviolet (EUV) lithography system in a cleanroom environment. Engineers carefully operate and maintain the machine, which uses EUV light to etch incredibly small patterns onto silicon wafers. This cutting-edge technology enables the production of the most advanced microchips in the world, pushing the limits of precision, physics, and engineering.
Seller
F5yS...zrVM
Contract
H1tT...Kv9P
Created
Apr 6, 2026, 6:49 PM
Updated
Apr 6, 2026, 6:49 PM
Issuer
F5yS...zrVM
Contract / ApaV...P5cV
Silent SmileLeonardo da Vinci’s Mona Lisa is one of the most iconic portraits in history. The painting captures a woman with an enigmatic smile that has fascinated viewers for centuries. Her calm expression, subtle gaze, and the mysterious landscape in the background create a sense of depth and intrigue. Da Vinci’s use of soft transitions between light and shadow, known as sfumato, gives the portrait a lifelike and almost surreal quality, making it timeless and endlessly captivating.
Seller
F5yS...zrVM
Contract
ApaV...P5cV
Created
Apr 6, 2026, 6:43 PM
Updated
Apr 6, 2026, 6:44 PM
Issuer
F5yS...zrVM
Display logic
Public by default, private on completion
The storefront now reflects database-level filtering. Once settlement completes, the lot disappears from this surface and becomes visible only inside the authenticated winner’s profile.
Storefront query
status != completedMarketplace reads only active lots so completed inventory is removed instantly after the cached protocol status updates.
Profile query
winner scopedThe profile route loads only lots where status is completed and the settled bidder matches the authenticated wallet.
Create flow
DB -> chain -> linkNew lots are stored in Postgres first, initialized on Solana second, then linked back to the database record with the auction address.
Media storage
Base64 in PostgresImages remain inside the relational model for MVP speed, avoiding external object storage while keeping the app deployable as a compact full-stack service.
Next step
Seller studio
Lot creation now lives behind Sign-In With Solana and uses the connected wallet both for the authenticated session and the on-chain initialization transaction.
Connect Phantom or another Wallet Standard wallet.
Sign the nonce challenge to mint an authenticated session cookie.
Upload an image, write the title and description, and initialize the auction on chain.