Certificates

A certificate that anyone can verify.

Every certificate is a credential signed to Open Badges 3.0: readable code, QR, public verification page, PNG badge with the data inside. It issues by itself at cycle end if the student attended enough.

Start for freeSee the attendance register
  • Signed Open Badges 3.0 credential
  • Public verification with code and QR
  • Automatic issue with attendance threshold
  • On the student profile and the social
Spaces Liceo Scientifico 1° anno Liceo Scientifico · 1° annoAccademia LeonardoMarco Bianchi
Liceo Scientifico · 1° anno
LivePublished07 Sep – 05 Jun
SavePublish
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
6
Revoked
0
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Render preview Save design
Template
Accademia LeonardoACCADEMIA LEONARDO
CERTIFICATE
OF COMPLETION
Giulia Esposito
has successfully completed the course
Liceo Scientifico · 1° anno
508.3 hoursAttendance 92%
Skills: Matematica, Fisica, Italiano, Latino, Storia
ALD-Q3NF-0FSG
Verify at
app.aladia.io/verify/ALD-Q3NF-0FSG
Marco Bianchi
Marco Bianchi
Principal · Accademia Leonardo
Elena Ferrari
Elena Ferrari
Academic coordinator
Issued on 24 set 2026
Preview with sample data. The verification id and QR are generated per certificate.
Features

Issued, signed, verifiable

The standard is 1EdTech’s: the credential is valid outside Aladia and revocation is public.

Signed credential

Academy key, Ed25519 signature, W3C verifiable credential. The PNG badge contains the JSON: carry it anywhere and verify offline.

Spaces Liceo Scientifico 1° anno Liceo Scientifico · 1° annoAccademia LeonardoMarco Bianchi
Liceo Scientifico · 1° anno
LivePublished07 Sep – 05 Jun
SavePublish
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
6
Revoked
0
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Sofia Lombardi
Sofia LombardiValidAutomatic
ALD-BZB5-03J6 · 24 set 2026
Accademia Leonardo
2026
Aurora Conti
Aurora ContiValidAutomatic
ALD-RK45-CYVG · 24 set 2026
Accademia Leonardo
2026
Matteo Moretti
Matteo MorettiValidAutomatic
ALD-XPC5-D1QN · 24 set 2026
Accademia Leonardo
2026
Marco Gallo
Marco GalloValidManual
ALD-J823-FRCT · 24 set 2026
Accademia Leonardo
2026
Lorenzo De Luca
Lorenzo De LucaValidAutomatic
ALD-3Q3B-5WCS · 24 set 2026
Accademia Leonardo
2026
Giulia Esposito
Giulia EspositoValidAutomatic
ALD-Q3NF-0FSG · 24 set 2026
Accademia Leonardo
2026
Signed credential
Giulia Esposito · Liceo Scientifico · 1° anno · ALD-Q3NF-0FSG
Academy key (did:key, encrypted in the database)
Done
Ed25519 signature of the W3C credential
Done
PNG badge with the credential baked in
Done
Signature verification
Verified
credential.json · Open Badges 3.0 · W3C VC 2.0
{
  "@context": ["https://www.w3.org/ns/credentials/v2",
               "https://purl.imsglobal.org/spec/ob/v3p0/context-3.0.3.json"],
  "type": ["VerifiableCredential", "OpenBadgeCredential"],
  "issuer": { "id": "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK",
              "name": "Accademia Leonardo" },
  "credentialSubject": { "name": "Giulia Esposito",
    "achievement": { "name": "Liceo Scientifico · 1° anno", "id": "ALD-Q3NF-0FSG" } },
  "proof": { "type": "DataIntegrityProof", "cryptosuite": "eddsa-rdfc-2022",
             "proofValue": "z3FXQjecWufY46yg5abdVZsXqLhxhueuSoZgNSARiKBk…" }
}
BADGE
Accademia Leonardo
Liceo Scientifico · 1° anno
2026
PNG 600×600 · credential baked in
Verifiable offline too, with any Open Badges 3.0 verifier.
Download PDF Download badge Open verification

Public verification page

aladia.io/verify/ALD-XXXX-XXXX shows student, course, academy, date, status. The QR on the certificate leads there.

app.aladia.io/verify/ALD-Q3NF-0FSG
ALADIA Public page · no account required
Verifying the signature…
Valid certificate
This certificate was issued by Accademia Leonardo and its digital signature is intact.
StudentGiulia Esposito
CourseLiceo Scientifico · 1° anno
AcademyAccademia Leonardo
Issued on24 set 2026
Hours and attendance508,3 h · 92% attendance
Status Valid· not in the revocation list
Cryptographic proof
issuer: did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK
proof: eddsa-rdfc-2022 · Ed25519 · signature valid ✓
status: 1EdTech revocation list · updated 24 set 2026 15:32
Download PDF PNG badge Add to LinkedIn
Accademia LeonardoACCADEMIA LEONARDO
CERTIFICATE
OF COMPLETION
Giulia Esposito
has successfully completed the course
Liceo Scientifico · 1° anno
508.3 hoursAttendance 92%
Skills: Matematica, Fisica, Italiano, Latino, Storia
ALD-Q3NF-0FSG
Marco Bianchi
Marco Bianchi
Principal · Accademia Leonardo
Issued on 24 set 2026
ALD-Q3NF-0FSG
The QR printed on the certificate leads to this page.

Automatic issue

At cycle end the system checks minimum attendance and completion and issues. Or issue by hand, single or in bulk.

Spaces Liceo Scientifico 1° anno Liceo Scientifico · 1° annoAccademia LeonardoMarco Bianchi
Liceo Scientifico · 1° anno
LivePublished07 Sep – 05 Jun
SavePublish
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
6
Revoked
0
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Save
Issue at cycle end
On 5 June the system checks the requirements and issues by itself.
Require minimum attendance
Percentage of lessons attended, from the attendance register.
Threshold
60%
75%
from the register
Require completion
All lessons completed and assessments submitted.
Automatic post on the social
Badge and Verify button on the student’s profile.
Issue by hand Issue in bulkOr issue yourself, single or in bulk.
FORECAST
At cycle end · 05 giu 2026
Giulia EspositoMarco GalloSofia LombardiAurora ContiMatteo MorettiLorenzo De Luca21 / 23 students meet the requirements
Andrea RicciAndrea Ricci68%below threshold
Chiara ColomboChiara Colombo71%below threshold

On the profile and the social

Certificates tab on the student profile, automatic post with badge and Verify button, linked Experience section.

Profile Giulia EspositoAccademia LeonardoGiulia Esposito
Giulia Esposito
Giulia Esposito
@giuliaesposito · 10 Followers · 11 Following
Edit profile
Student · Year 1 Liceo Scientifico at Accademia Leonardo. I love physics, drawing and Russian novels. Class representative 🎓
PostsReelsQ&AReviewsAboutExperienceCertificates
Accademia Leonardo
2026
Liceo Scientifico · 1° anno
Accademia Leonardo
ALD-Q3NF-0FSG · 24 set 2026
Valid
View LinkedIn
Accademia Leonardo
2026
Inglese B1 · Preparazione alla certificazione
Accademia Leonardo
ALD-M3VZ-D4E6 · 24 set 2026
Valid
View LinkedIn
Giulia Esposito
Giulia Esposito· automatic post · 2 min
I completed Liceo Scientifico · Year 1 at Accademia Leonardo 🎓
34 6 Verify
Accademia Leonardo
2026

Issued and revocations

List of issued per course with status, revocation with reason and public revocation list per standard.

Spaces Liceo Scientifico 1° anno Liceo Scientifico · 1° annoAccademia LeonardoMarco Bianchi
Liceo Scientifico · 1° anno
LivePublished07 Sep – 05 Jun
SavePublish
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
6
Revoked
0
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Issue
Search by name or verification id
Sofia Lombardi
Sofia LombardiValidAutomatic
ALD-BZB5-03J6 · 24 set 2026
Accademia Leonardo
2026
Aurora Conti
Aurora ContiValidAutomatic
ALD-RK45-CYVG · 24 set 2026
Accademia Leonardo
2026
Matteo Moretti
Matteo MorettiValidAutomatic
ALD-XPC5-D1QN · 24 set 2026
Accademia Leonardo
2026
Marco Gallo
Marco GalloValidManual
ALD-J823-FRCT · 24 set 2026
Accademia Leonardo
2026
Lorenzo De Luca
Lorenzo De LucaValidAutomatic
ALD-3Q3B-5WCS · 24 set 2026
Accademia Leonardo
2026
Giulia Esposito
Giulia EspositoValidAutomatic
ALD-Q3NF-0FSG · 24 set 2026
Accademia Leonardo
2026
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
5
Revoked
1
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Issue
Search by name or verification id
Sofia Lombardi
Sofia LombardiValidAutomatic
ALD-BZB5-03J6 · 24 set 2026
Accademia Leonardo
2026
Aurora Conti
Aurora ContiValidAutomatic
ALD-RK45-CYVG · 24 set 2026
Accademia Leonardo
2026
Matteo Moretti
Matteo MorettiValidAutomatic
ALD-XPC5-D1QN · 24 set 2026
Accademia Leonardo
2026
Marco Gallo
Marco Gallo RevokedManual
ALD-J823-FRCT · 24 set 2026
Accademia Leonardo
2026
Lorenzo De Luca
Lorenzo De LucaValidAutomatic
ALD-3Q3B-5WCS · 24 set 2026
Accademia Leonardo
2026
Giulia Esposito
Giulia EspositoValidAutomatic
ALD-Q3NF-0FSG · 24 set 2026
Accademia Leonardo
2026
Public revocation list (1EdTech) updatedapp.aladia.io/ob3/revocations/liceo-scientifico-1
Revoke certificate
Marco Gallo · ALD-J823-FRCT
Reason
Issued by mistake: enrolment moved to Year 2.
The verification page will show “revoked” and the public revocation list updates right away.
Cancel Revoke
Certificate revoked · revocation list updated

Design with your brand

Three A4 templates with logo, signature, colours; server-rendered preview in the builder, Certificate section of the course.

Spaces Liceo Scientifico 1° anno Liceo Scientifico · 1° annoAccademia LeonardoMarco Bianchi
Liceo Scientifico · 1° anno
LivePublished07 Sep – 05 Jun
SavePublish
← Certificate
Certificate & badge
Design the certificate, see who earned it, decide when it is issued. Every certificate carries a signed Open Badges 3.0 credential and a public verification page.
Issued
6
Valid
6
Revoked
0
Issued automatically when a student reaches the completion threshold.
DesignIssued 6Settings
Render preview Save design
Template
Academy logo
Accademia Leonardoaccademia-leonardo.png
Colour
#DCB768
Signatures
Marco Bianchi
Marco Bianchi
Principal · Accademia Leonardo
Elena Ferrari
Elena Ferrari
Academic coordinator
Text
Attended the live school year with merit at Accademia Leonardo.
Three A4 templates · server-rendered PDF, identical to the preview
Accademia LeonardoACCADEMIA LEONARDO
CERTIFICATE
OF COMPLETION
Giulia Esposito
has successfully completed the course
Liceo Scientifico · 1° anno
508.3 hoursAttendance 92%
Skills: Matematica, Fisica, Italiano, Latino, Storia
ALD-Q3NF-0FSG
Marco Bianchi
Marco Bianchi
Principal · Accademia Leonardo
Issued on 24 set 2026
Accademia Leonardo
ACCADEMIA LEONARDO
CERTIFICATE
OF COMPLETION
Giulia Esposito
has successfully completed the course
Liceo Scientifico · 1° anno
508.3 hoursAttendance 92%
Skills: Matematica, Fisica, Italiano, Latino, Storia
ALD-Q3NF-0FSG
Marco Bianchi
Marco Bianchi
Principal · Accademia Leonardo
Issued on 24 set 2026
The server renders the preview…
How it works

From course to certificate

  1. 1

    Design

    In the builder Certificate section: template, logo, signature, text.

  2. 2

    Set the rules

    Minimum attendance, completion, automatic issue at cycle end.

  3. 3

    Issue and verify

    The student gets certificate and badge; anyone verifies with code or QR.

What’s inside

Open Badges 3.0 + VC 2.0
Verifiable credential signed with Ed25519, did:key per academy.
ALD-XXXX-XXXX code
Readable, printed on the certificate with QR.
Baked badge
600×600 PNG with the credential inside.
Public revocations
1EdTech list, status updated in verification.
Encrypted keys
Issuer key encrypted in the database.
Cycle-end issue
Periodic check and issue queue.

Frequently asked questions

Related modules

Attendance registerFeed and storiesCourse builderExams and proctoring

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