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Lesson of the Day PBC · Definite Credential Ledger

The credential
is the proof.

15 verified credentials across 8 career paths. Delivered by Kelly in 19 languages to learners in 190 countries. Issued to a self-sovereign identity the learner owns forever.

“The credential system failed when it confused presence with capability, and institutions with proof. We built the replacement: a ledger that answers one question — can this person do this? — with a cryptographic yes, regardless of which country they were born in.”

Nicolette Rankin · Founder & CEO
365
Career tracks, growing annually
19
Languages at launch
8B
Learners the infrastructure is designed for
0
Institutional intermediaries required
Technical Infrastructure

Ledger
Specification

Every credential on the Definite Ledger is issued as a W3C Verifiable Credential — the same open standard used by digital identity infrastructure worldwide.

Format
W3C Verifiable Credential (JSON-LD)
Ledger
Immutable, publicly queryable
Ownership
Self-sovereign — holder controls access
Verification
Cryptographic proof, zero-knowledge capable
Expiry
None. Skills atrophy; credentials don’t lie about the past.
Query
“Can this person do X?” → Boolean + evidence hash
The question the ledger answers is not “did this person attend?” but “can this person do this?” Employers query the ledger directly. No résumé required. No institution name required. The work is the credential.
Curriculum Architecture

365 days.
Five capabilities.

Every credential track maps five verified capabilities onto a 365-day Kelly curriculum. Two sessions daily — a universal lesson for every learner on Earth, and a credential module specific to the learner’s chosen track. The credential module is learner-paced; the universal lesson is calendar-locked globally. The same production standard. The same Kelly. Different content sets.
Foundation
Days 1–30
Domain vocabulary, mental models, history, why this matters
Capability 1
Days 31–91
~60 days of structured depth on the first verified capability
Capability 2
Days 92–152
Second capability, built on the foundation of the first
Capability 3
Days 153–213
Third capability, integrated with prior learning
Capability 4
Days 214–274
Fourth capability, applied and reinforced
Capability 5
Days 275–335
Fifth capability, the apex of the practitioner skill set
Verification Prep
Days 336–365
Case simulations, mock assessments, capstone framing — ready to test
Credential Framework

15 credentials across
8 career paths

For Employers

Hire capability.
Not credentials.

Post a role requiring Software Engineer II. Query the ledger. Receive a Boolean + evidence hash. No résumé screening. No university filter. No country-of-origin premium. The ledger tells you exactly what this person can build — verified by working engineers, not admissions committees.

Software Engineer II
“Can this person architect distributed systems handling 100K+ users?”
→ TRUE · evidence_hash: 0x9f3a...
Manufacturing Engineer
“Can this person program 5-axis CNC and manage a production line?”
→ TRUE · evidence_hash: 0x7c1e...
Financial Analyst
“Can this person build a 3-statement model and defend a valuation?”
→ TRUE · evidence_hash: 0x4b8d...

Every capability listed above is verified through practical demonstration, not examination. Assessors are working professionals, not academics. The question the ledger answers is not “did this person attend?” but “can this person do this?”

Lesson of the Day PBC