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+# NEAR Decentralized Identifiers (DIDs)
+
+This document details how to use the `did:near` method for decentralized identifiers on the NEAR blockchain, how it complies with [W3C DID Core](https://www.w3.org/TR/did-core/), and how it integrates with verifiable credentials (VCs), proof registries, and resolution tooling.
+
+---
+
+## What is a DID?
+
+A **Decentralized Identifier (DID)** is a persistent, unique identifier that does not require a centralized registry. On NEAR, DIDs are created based on either account names or raw public keys, and they are fully compatible with the W3C DID standard.
+
+---
+
+## The `did:near` Method
+
+This method supports two types of DIDs:
+
+| Type               | Example                                | Description                          |
+|--------------------|----------------------------------------|--------------------------------------|
+| Named Account      | `did:near:alice.testnet`               | Derived from an on-chain NEAR account |
+| Base58 Public Key  | `did:near:7YzVXb8vKw3...`              | Directly represents an Ed25519 key   |
+
+---
+
+## DID Document Format
+
+Example output from resolving a `did:near`:
+
+```json
+{
+  "@context": "https://w3id.org/did/v1",
+  "id": "did:near:alice.testnet",
+  "verificationMethod": [
+    {
+      "id": "did:near:alice.testnet#owner",
+      "type": "Ed25519VerificationKey2018",
+      "controller": "did:near:alice.testnet",
+      "publicKeyBase58": "3gfD2z7q..."
+    }
+  ],
+  "authentication": ["did:near:alice.testnet#owner"],
+  "assertionMethod": ["did:near:alice.testnet#owner"]
+}
+```
+
+This structure follows the [W3C DID Core Spec](https://www.w3.org/TR/did-core/), including:
+
+- A DID identifier (`id`)
+- Key references (`verificationMethod`)
+- Authentication and assertion capabilities
+- Base58-encoded Ed25519 public keys
+
+---
+
+## ⚙️ Repositories
+
+| Component       | Repository URL |
+|----------------|----------------|
+| DID Registry (contract) | https://github.com/DTI-web3/did-near |
+| ProofType Contract       | https://github.com/DTI-web3/did-near-prooftype |
+| ProofType SDK            | https://www.npmjs.com/package/@kaytrust/prooftypes |
+| DID Resolver SDK         | https://github.com/DTI-web3/did-near-resolver |
+
+---
+
+## How Resolution Works
+
+1. Extract `identifier` from the DID.
+2. If `identifier` is a NEAR account ID, resolve via RPC `account.state()`.
+3. If it's a base58 public key, resolve via the registry smart contract using `identity_owner`.
+4. Construct the DID document with the correct public key.
+
+---
+
+## How to Use
+
+### Create a DID
+
+If using a NEAR wallet account:
+```ts
+const did = "did:near:yourname.testnet";
+```
+
+If using a raw Ed25519 key (base58 encoded):
+```ts
+const did = "did:near:7YzVXb8vKw3...";
+```
+
+---
+
+## Issuing and Verifying Credentials
+
+### Step 1 – Hash the Credential
+
+```ts
+const cid = SHA256(JSON.stringify(credential)).toString(CryptoJS.enc.Base64);
+```
+
+### Step 2 – Issue on NEAR
+
+```ts
+await proofType.generateProof(credential, {
+  wallet,
+  cid
+});
+```
+
+This records the hash (`cid`) on-chain with the `subject_did`.
+
+### Step 3 – Verify On-chain
+
+```ts
+const isValid = await proofType.verifyProof("did:near:subject|bafy..."); // returns true or false
+```
+
+---
+
+## SDK Usage
+
+### Resolver SDK
+
+```ts
+import { NearDidResolver } from '@your-org/did-near-resolver';
+
+const resolver = new NearDidResolver();
+const doc = await resolver.resolveDID("did:near:alice.testnet");
+console.log(doc.id); // "did:near:alice.testnet"
+```
+
+### ProofType SDK
+
+```ts
+import { ProofTypeNear } from '@kaytrust/prooftypes';
+
+const proofType = new ProofTypeNear();
+const proof = await proofType.generateProof(vcPayload, { wallet, cid });
+const isValid = await proofType.verifyProof(proof);
+```
+
+---
+
+## Security & Compliance
+
+- Each `(did, cid)` pair can only be registered once.
+- Issuer is linked to the signer account via NEAR transaction.
+- DID resolution and structure is fully W3C-compliant.
+- `cid` is always a Base64-encoded SHA-256 hash of the VC content.
+- Public keys are handled securely via NEAR native accounts or custom registries.
+
+---
+
+## Testnet Deployment
+
+- Registry Contract: `neardidregistry.testnet`
+- ProofType Contract: `neardtiprooftype.testnet`
+- Network: `testnet`
+- Language: Rust (`near-sdk`)
+
+---
+
+## Conclusion
+
+The `did:near` method enables full-stack decentralized identity flows on NEAR, including:
+
+- Account- and key-based identifiers
+- W3C-compliant DID documents
+- Smart contract-backed credential proofs
+- SDKs for resolution and attestation
+
+Use this stack to build portable, verifiable, and secure Web3 identity solutions on NEAR.