Blockchain-Anchored I-CIL Scores

Immutable Anchoring & Verification Layer

Version

1.0

Status

Locked

Applies To

I-CIL v1.x

Last Updated

2026-02-01

Network

Polygon (Public)

ICIL v1 Specifications (Public Reference)

The locked specification documents defining ICIL v1 are publicly available for reference. These documents are informational and define the immutable rules governing the I-CIL registry.

https://github.com/icil-registry/icil-registry

Repository contains: LOCKED_STATE.md, SCORING_METHODOLOGY_v1.md, EVIDENCE_SPECIFICATION_v1.md, DISPUTE_PROCESS_v1.md, GOVERNANCE_CHARTER_v1.md

Purpose

The blockchain layer acts as a decentralized digital notary. It ensures that once an I-CIL score is finalized, it becomes part of a permanent, tamper-evident record. This prevents silent manipulation, retroactive editing, or selective censorship of professional history.

  • Immutability of score history
  • Single source of truth for finalized scores
  • Public verification without exposing sensitive data
  • Tamper-evident audit trail

Blockchain Design Philosophy

  1. Minimal On-Chain Data – Only essential immutable facts are recorded to ensure privacy and efficiency.
  2. Off-Chain First – All heavy computation, evidence processing, and dispute resolution occur off-chain.
  3. Append-Only Records – The contract logic strictly prohibits updates or deletions; history is additive.
  4. Deterministic Anchoring – Every on-chain record maps one-to-one with a deterministic off-chain computation.
  5. Public Verifiability – Technical accessibility ensures that verification does not require privileged access.

Role of Blockchain in I-CIL

What Blockchain IS

  • Immutable ledger of finalized score snapshots
  • Public verification mechanism
  • Tamper-evident audit trail

What Blockchain IS NOT

  • ❌ Scoring system
  • ❌ Dispute resolver
  • ❌ Evidence or PII storage
  • ❌ Governance mechanism
  • ❌ Real-time processing layer

System Responsibility Split

All intelligence lives off-chain. Blockchain only notarizes outcomes.

Off-Chain (I-CIL Backend)

  • Identity creation
  • Signal intake
  • Deterministic score computation
  • Anomaly detection
  • Dispute handling
  • Evidence management
  • Governance workflows

On-Chain (Blockchain)

  • Immutable score anchoring
  • Score history preservation
  • Public verification reference

How a Score Becomes Immutable

Once anchored, a score can never be modified or removed.

1

Computed

Score computed off-chain using approved methodology.

2

Finalized

Score finalized after anomaly and dispute checks.

3

Generated

Deterministic score snapshot generated.

4

Anchored

Snapshot anchored on blockchain.

5

Verified

Blockchain returns immutable reference.

What Is Anchored On-Chain

Field Description
icilId Pseudonymous I-CIL identifier
score Final computed I-CIL score
methodologyVersion Scoring methodology version
methodologyHash SHA-256 hash of methodology
timestamp Blockchain timestamp
recordedBy System signer address

Never Stored On-Chain

Personal Identifiable Information (PII)

Evidence files

Evidence hashes

Disputes

Platform data

AI outputs

Verify an I-CIL Score

Any third party can independently verify score immutability.

Verification Inputs

  • I-CIL ID
  • Score Snapshot Identifier / Hash
  • Blockchain Transaction Hash

Verification Outcome

Verified
  • Score exists on blockchain
  • Anchored timestamp verified
  • Methodology version verified
  • No personal data exposed

Smart Contract Characteristics

The contract is intentionally boring. That is the security feature.

  • Append-only contract
  • No update or delete functions
  • No fund handling
  • No token logic
  • No external contract calls
  • Authorized system signers only
  • All actions emit public events

“Anyone—brands, influencers, auditors, regulators, or the public—can independently verify that an I-CIL score was finalized at a specific time and has not been altered since.”

Common Misconceptions

Is blockchain used to calculate scores?

No. Computation happens off-chain.

Can a score be changed after anchoring?

No. The contract is append-only.

Are disputes stored on-chain?

No. Disputes are processed off-chain.

Does I-CIL store personal data on-chain?

Never. Only pseudonymous identifiers.

Can anyone verify a score?

Yes. The ledger is public.