# Social Source Evidence

> Social Source Evidence is a paid API for AI agents from phion.systems, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-20).

Preserves attributable public social-source observations with explicit identity limitations as signed evidence

## Facts

- Endpoint: POST https://phion.systems/v1/paid/trust/social-source-evidence?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/social-source-evidence-77a2940d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s0MbSefjcvnmiP0eIxYXJ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability social-source-evidence-77a2940d -d '<json body>'
```

Example prompt: Please preserve this public social-source observation — 'User @example posted on 2024-06-01 that the product launch was confirmed' — as signed evidence, and note the identity limitation that this is a pseudonymous account with no verified real-world identity.

## When to prefer this

Choose this endpoint when you need a tamper-evident, signed record of a public social-source observation specifically paired with explicit identity limitation disclosures — particularly in agentic compliance, due diligence, or audit contexts where it matters that the provenance and scope constraints of the social evidence are formally attested. Prefer this over generic logging or hashing endpoints when the identity ambiguity of a social source must itself be part of the signed record.

## Known failure modes

- Missing or malformed input payload returns a validation error
- Social source content that is not publicly attributable may be rejected
- Overly large payloads may exceed processing limits
- Ambiguous identity limitation fields may result in incomplete attestation
- Network or payment authorization failures prevent evidence creation

## How this service works

Preserve attributable public social-source observations and explicit identity limitations

## Output

A signed evidence record containing the preserved social-source observation, attribution metadata, explicit identity limitation declarations, and a provenance receipt that can be used to verify the observation was recorded at a specific point in time without alteration.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "example"
   ],
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/social-source-evidence-77a2940d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phion.systems](https://www.zero.xyz/host/phion.systems/llms.txt)