The work that holds communities together has never had portable infrastructure. The person who organizes rehearsals, the colleague who reviews code, the mentor a student worked with for three years, the coordinator of a volunteer shift over a decade. What survives that work lives in memory and in platform databases, both of which decay. Extol makes it visible in a form that outlasts any platform.
The idea is simple. Someone did something. Someone else who was there signs their name to it. The signature is recorded, owned by the person named in it, and shown only when they choose to show it. Records are shown, never pulled: nobody can look one up without the person's consent. Over time a person accumulates a record of witnessed work that belongs to them. Not to Extol, not to a platform that could close tomorrow.
What Extol is for
Organizations and communities where contribution is abundant and credit is scarce. Maker spaces. Trail crews. Nonprofits and their volunteers. Youth sports. Open source projects. Research labs. Creative collectives.
The specification
The attestation protocol Extol uses is public. It is called the Attestation Notary Specification — a specification for signed factual claims and their notarization to a public substrate. Anyone can implement it. Extol is the first production adopter. The spec lives at github.com/extol-work/notary.
The reasoning
The historical and design reasoning behind Extol is developed in a series of essays at extol.work/essays. Start with The Last Signal.
Contact
Extol is built by Ken Leiserson, an engineer who has spent his career building internet products, and studying economics and markets. Find him on X at @kenserson.