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@signature.digital/interfaces

Core TypeScript interfaces for the signature.digital contract management system. 📋

This package provides 200+ interfaces and types covering every aspect of digital contract management from basic contract structure to eIDAS-compliant signatures, identity verification, and legal compliance.

Install

pnpm add @signature.digital/interfaces

Usage

import type {
  IPortableContract,
  IRole,
  IInvolvedParty,
  IParagraph,
  TContractStatus,
} from '@signature.digital/interfaces';

Module Structure

The package is organized into focused modules:

Module Description
types.ts Foundation type aliases (90+ types)
terms.ts Financial, time, and obligation terms
signature.ts Signature data structures and fields
identity.ts Identity verification system
legal.ts TSA timestamps, blockchain anchoring, compliance
versioning.ts Semantic versioning and change tracking
collaboration.ts Comments, suggestions, presence
lifecycle.ts Status workflow, audit logs, retention
attachments.ts Exhibits, schedules, document bundles
pdf.ts PDF generation configuration
contract.ts Main IPortableContract interface

Type Categories

📋 Contract Classification

type TContractCategory = 'employment' | 'service' | 'sales' | 'lease' | 'license' | 'partnership' | 'confidentiality' | 'financial' | 'real_estate' | 'intellectual_property' | 'government' | 'construction' | 'healthcare' | 'insurance' | 'other';

type TContractType = 'employment_full_time' | 'employment_part_time' | 'employment_minijob' | ... | string;

type TContractStatus = 'draft' | 'internal_review' | 'legal_review' | 'negotiation' | 'pending_approval' | 'pending_signature' | 'partially_signed' | 'signed' | 'executed' | 'active' | 'suspended' | 'renewal_pending' | 'expired' | 'terminated' | 'superseded' | 'cancelled' | 'voided';

✍️ Signature Types

type TSignatureType = 'drawn' | 'typed' | 'click' | 'digital' | 'qualified' | 'biometric';
type TSignatureLegalLevel = 'simple' | 'advanced' | 'qualified';
type TSignatureStatus = 'pending' | 'captured' | 'verified' | 'timestamped' | 'complete' | 'revoked' | 'expired';

🪪 Identity Verification

type TIdentityVerificationMethod = 'none' | 'email' | 'sms' | 'knowledge' | 'document_upload' | 'document_nfc' | 'document_ocr' | 'biometric_facial' | 'video_ident' | 'bankid' | 'eid' | 'third_party_idp';
type TVerificationConfidence = 'none' | 'low' | 'medium' | 'high' | 'verified';
type TIdentityDocumentType = 'passport' | 'national_id' | 'drivers_license' | 'residence_permit' | 'travel_document' | 'other';

💰 Financial Types

type TPaymentFrequency = 'one_time' | 'daily' | 'weekly' | 'bi_weekly' | 'semi_monthly' | 'monthly' | 'bi_monthly' | 'quarterly' | 'semi_annually' | 'annually' | 'on_demand' | 'upon_completion' | 'milestone_based' | 'custom';
type TPaymentMethod = 'bank_transfer' | 'sepa_direct_debit' | 'credit_card' | 'check' | 'cash' | 'paypal' | 'crypto' | 'escrow' | 'letter_of_credit' | 'other';

⏱️ Time & Duration

type TDurationUnit = 'hours' | 'days' | 'weeks' | 'months' | 'years' | 'indefinite';
type TRenewalType = 'none' | 'manual' | 'auto_renew' | 'evergreen' | 'option_to_renew';
type TTerminationReason = 'breach_of_contract' | 'mutual_agreement' | 'convenience' | 'non_performance' | 'insolvency' | 'force_majeure' | 'regulatory_change' | 'merger_acquisition' | 'other';
type TTimestampMethod = 'tsa' | 'blockchain' | 'qualified_tsa';
type TBlockchainNetwork = 'bitcoin' | 'ethereum' | 'polygon' | 'arbitrum' | 'optimism' | 'hyperledger' | 'private';
type THashAlgorithm = 'SHA-256' | 'SHA-384' | 'SHA-512' | 'Keccak-256';
type TSignatureAlgorithm = 'RSA-SHA256' | 'RSA-SHA384' | 'RSA-SHA512' | 'ECDSA-P256' | 'ECDSA-P384' | 'Ed25519';

Key Interfaces

IPortableContract

The main contract interface that ties everything together:

interface IPortableContract {
  id: string;
  title: string;
  context: string;
  metadata: IContractMetadata;
  availableRoles: IRole[];
  involvedParties: IInvolvedParty[];
  paragraphs: IParagraph[];
  variables: IVariable[];
  signatureFields: ISignatureField[];
  financialTerms: IFinancialTerms;
  timeTerms: ITimeTerms;
  obligationTerms: IObligationTerms;
  priorContracts: IPriorContractReference[];
  attachments: IContractAttachment[];
  versionHistory: IVersionHistory;
  collaborators: ICollaborator[];
  commentThreads: ICommentThread[];
  suggestions: ISuggestion[];
  lifecycle: IDocumentLifecycle;
  auditLog: IAuditLog;
  pdfConfig?: IPdfGenerationConfig;
  // ... timestamps, organization, integrations
}

ISignature

Complete signature with data, metadata, and verification:

interface ISignature {
  id: string;
  signatureType: TSignatureType;
  legalLevel: TSignatureLegalLevel;
  data: TSignatureData; // Discriminated union
  metadata: ISignatureMetadata;
  consents: IConsent[];
  auditTrail: ISignatureAuditEntry[];
  status: TSignatureStatus;
}

IIdentityVerificationResult

Full identity verification outcome:

interface IIdentityVerificationResult {
  id: string;
  status: TIdentityVerificationStatus;
  confidence: TVerificationConfidence;
  confidenceScore: number;
  methodsAttempted: TIdentityVerificationMethod[];
  verifiedIdentity?: IVerifiedIdentity;
  documentVerification?: IIdentityDocument;
  facialVerification?: IFacialVerification;
  thirdPartyVerification?: IThirdPartyVerification;
  // ... timestamps, failures, audit trail
}

Factory Functions

Each module provides factory functions for creating properly initialized objects:

import {
  createEmptyContract,
  createRole,
  createParagraph,
  createEmptyFinancialTerms,
  createInitialVersion,
  createCommentThread,
  createDefaultPdfConfig,
  // ... 30+ factory functions
} from '@signature.digital/interfaces';

Dependencies

  • @tsclass/tsclass Business entity types (TContact, IAddress, IPdf, etc.)

This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the LICENSE file.

Please note: The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

Trademarks

This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.

Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.

Company Information

Task Venture Capital GmbH Registered at District Court Bremen HRB 35230 HB, Germany

For any legal inquiries or further information, please contact us via email at hello@task.vc.

By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.