Felipe Forbeck fforbeck

How UCAN/Attest Works

Core Concept

ucan/attest enables an authority (like the Storacha service) to attest that a linked UCAN delegation is valid. It's essentially a way for a trusted service to vouch for a delegation that might otherwise be unverifiable.

Structure

AI-Accelerated Development Workflow (For Devs)

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Structured in 3 pillars and 5 phases.

Introduction

If you're like most developers, you've already tried using AI to code. Maybe you ran some prompts in ChatGPT, installed an extension in VS Code, or even bought access to Cursor, Windsurf, or GitHub Copilot.

Ref: https://gist.github.com/hopeseekr/f522e380e35745bd5bdc3269a9f0b132

sequenceDiagram
    participant User
    participant KMSAdapter as KMS Crypto Adapter
    participant SymCrypto as Symmetric Crypto<br/>(AES-CTR)
    participant Gateway as Private Gateway<br/>(private.storacha.link)
    participant KMS as Google Cloud KMS
    participant Storage as IPFS Storage<br/>(w3s.link)

    Note over User,Storage: ENCRYPTION FLOW

❯ upload-service (import-w3ui) ✘ pnpm nx run-many -t build view-logs zsh: correct 'nx' to '.nx' [nyae]? n

✔ nx run @storacha/capabilities:build [local cache] ✔ nx run @storacha/did-mailto:build [local cache] ✔ nx run @w3ui/core:build [existing outputs match the cache, left as is] ✔ nx run @storacha/filecoin-client:build [local cache] ✔ nx run @storacha/blob-index:build [local cache] ✔ nx run @w3ui/react:build [existing outputs match the cache, left as is] ✔ nx run @storacha/access:build [local cache]

JProfiler with Docker

Docker

DockerFile

DockerFile should have JProfiler installation.

RUN wget <JProfiler file location> -P /tmp/ && \
  tar -xzf /tmp/<JProfiler file> -C /usr/local && \
  rm /tmp/<JProfiler file>

	export STORACHA_SERVICE_DID=did:web:alan.up.storacha.network
	export STORACHA_SERVICE_URL=https://n7js8smi24.execute-api.us-west-2.amazonaws.com
	export STORACHA_STORE_NAME=storacha-cli-alan
	export STORACHA_RECEIPTS_URL=https://n7js8smi24.execute-api.us-west-2.amazonaws.com/receipt/

	export W3_SERVICE_DID=did:web:alan.up.storacha.network
	export W3_STORE_NAME=storacha-cli-alan
	export W3UP_SERVICE_URL=https://n7js8smi24.execute-api.us-west-2.amazonaws.com
	export W3UP_RECEIPTS_ENDPOINT=https://n7js8smi24.execute-api.us-west-2.amazonaws.com/receipt/

	import fs from 'node:fs'
	import { Readable } from 'node:stream'
	import { CARReaderStream } from 'carstream'
	import * as dagCBOR from '@ipld/dag-cbor'
	import * as dagJSON from '@ipld/dag-json'
	import * as DID from '@ipld/dag-ucan/did'

	Readable.toWeb(fs.createReadStream('proof.car'))
	.pipeThrough(new CARReaderStream())
	.pipeTo(new WritableStream({

	openapi: 3.0.3
	info:
	title: Tribute KYC API
	version: '1.0'
	x-logo:
	url: ''
	description: A minimal API spec to provide KYC certificates for Tribute DAO UI project.
	paths:
	/kyc-certificate/{{daoRegistryContractAddress}}/{{ethereumAddress}}:
	description: >-

	import * as sigUtil from 'eth-sig-util';

	type CouponType = 'coupon-kyc';
	type PrimaryType = 'Message' \| 'EIP712Domain';

	type CouponData = {
	type: CouponType;
	kycedMember: string;
	};