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Step 1
For a piece built to be used for years, not seasons, the seller mints a provenance card from their listing. They set a resale royalty, most choose 5%.
Step 2
Each card carries a serial like NJ-MAK-2026-XXXX, a cryptographic hash of its details, and a public page anyone can look up before they buy.
Step 3
Sold, resold, repaired, restored, authenticated. Every real event on the piece is added to its chain of custody, dated and visible.
Step 4
When the piece changes hands a second time through Njuru, the original maker's royalty comes back to them automatically. Not just the first sale. Every sale.
Why it exists
A maker sells a piece once, and that is usually the last they hear of it. Heirloom Mode changes the incentive: because the maker earns a royalty on every future resale, building something that lasts, and holds its value, and gets passed on, pays them back directly. It rewards the opposite of disposable.
Why buyers care
Buying a used or resold piece usually means trusting a stranger's story. A provenance card gives you a public, checkable history instead: who made it, who has owned it, and what has been done to it, backed by a hash that shows if anything was quietly changed.
Questions
Anything built to outlast its first owner: furniture, instruments, tools, jewelry, leather goods, watches. It is opt-in, and it is for durable, physical pieces, not things meant to be used up.
No. Minting a card is included for sellers on Njuru. The only ongoing cost is the resale royalty the maker sets themselves, which comes out of a future resale, not the first sale.
Yes. Every card has a public page at njuru.com/heirloom/[serial], and its details are backed by a cryptographic hash, so the facts on the card can't be quietly edited after the fact.
The royalty only applies to resales made through Njuru, since that is what makes it enforceable and automatic. A private sale elsewhere does not trigger it.
From your business dashboard, open the listing you want to mark, and use the Heirloom Mode panel to mint a card and set your royalty percentage.