Water Benefit Certificates

Overview

The Gold Standard Water Benefit Standard certifies projects that provide access to clean and safe water and that deliver water, sanitation, and hygiene benefits, mainly in developing countries. The methodology covers water access projects that protect water used for drinking, food preparation, and cleaning, and related sanitation and hygiene activities, quantifying the volume of water benefits generated each year. Projects are issued Water Benefit Certificates in proportion to the water benefits they produce. One Water Benefit Certificate represents a quantified and verified volume of water treated, supplied, or conserved.

Sources: methodology document · Gold Standard

01 · Roles

The workflow as an explicit directed graph. In Graph each column is one role, so you can see who acts at each step; every node names the org.broadlistening.policy.block.* def it resolves to plus its input and output record. Data flow switches to a lineage view that makes explicit what data each node needs and makes, with dependency arcs tracing every record back to the node that produced it. Hover to trace, click to inspect; revise edges (dashed) send work back.

03 · Generated lexicon records

The records this methodology compiles to, ready to write to a PDS. The first tabs are the new policy engine records; the ★ claim.activity tab and those after it are reused ATProto Collective Funding Ecosystem records (org.hypercerts.*): the issued hypercert batch, its rights, an example verification attachment and a retirement receipt.

{
  "$type": "org.broadlistening.policy.methodology",
  "code": "GS WBC",
  "name": "Water Benefit Certificates",
  "registry": "Gold Standard (GS)",
  "sector": "Water access",
  "creditType": "water",
  "status": "active",
  "version": "1.0",
  "scopes": [
    "Water",
    "Volumetric"
  ],
  "aligns": [
    "WRI VWBA 2.0"
  ],
  "roles": [
    {
      "id": "registry",
      "name": "Standard Registry",
      "permission": "Owns the policy, approves participants, anchors each issuance to its evidence."
    },
    {
      "id": "proponent",
      "name": "Project Proponent",
      "permission": "Registers the project and submits monitoring reports."
    },
    {
      "id": "vvb",
      "name": "Validation & Verification Body",
      "permission": "Independently validates the design and verifies monitored data."
    }
  ],
  "schemas": [
    "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.schema/gs-wbc-water-intervention",
    "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.schema/gs-wbc-water-monitoring"
  ],
  "graph": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.graph/gs-wbc",
  "issuesAs": "org.hypercerts.claim.activity",
  "workScope": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.hypercerts.workscope.cel/gs-wbc-scope",
  "rights": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.hypercerts.claim.rights/gs-wbc-rights",
  "createdAt": "2025-01-01T00:00:00.000Z"
}

04 · Schemas

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