stable/census

[BATCH+PROOF] Full stablecoin census, latest day, ranked by market cap; lifecycle flags terminated and depegged. Add ?verifiable=1 and every row carries _hash_core so you can recompute the hash offline without trusting us. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

Resource: api.truthbear.co/stable/census

Network: base · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3

Payment methods: — · Last validation: 2026-10-15 11:56:58.309+00

{
  "input": null,
  "output": null,
  "paymentRequirements": [
    {
      "raw": {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3",
        "amount": "90000",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://api.truthbear.co/stable/census",
        "extensions": {
          "bazaar": {
            "info": {
              "input": {
                "type": "http",
                "method": "GET",
                "queryParams": {
                  "verifiable": "optional - set to 1 to attach `_hash_core` per row (the canonical pre-image of the record_hash for that row) so you can "
                }
              },
              "output": {
                "type": "json",
                "example": {
                  "entity": "basis-cash-bac",
                  "current": {
                    "state": "dead",
                    "ongoing": false,
                    "death_type": "depeg-abandoned",
                    "lifespan_days": 152
                  },
                  "lifecycle": {
                    "peg": "usd",
                    "state": "dead",
                    "end_at": "2021-05-01",
                    "issuer": "Basis Cash (anon)",
                    "context": "The algorithmic stablecoin BAC traded below USD 1 for a long period and never regained its peg; after the seigniorage...",
                    "ongoing": false,
                    "birth_at": "2020-11-30",
                    "mechanism": "algorithmic",
                    "death_type": "depeg-abandoned",
                    "lifespan_days": 152
                  },
                  "signal_id": "stablecoin.lifecycle",
                  "source_ref": "https://www.coingecko.com/en/coins/basis-cash",
                  "entity_name": "Basis Cash (BAC)",
                  "observed_at": "2026-08-24T15:00:00.121Z",
                  "record_hash": "sha256:664da5b5c8cc399928a3149a49732e15d67f66d69b683e1469c0ab9871d8d702",
                  "source_tier": "T1",
                  "snapshot_date": "2026-08-24",
                  "data_age_hours": 0,
                  "hash_core_version": 4
                }
              }
            },
            "schema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "properties": {
                "input": {
                  "type": "object",
                  "required": [
                    "type",
                    "method"
                  ],
                  "properties": {
                    "type": {
                      "const": "http"
                    },
                    "method": {
                      "enum": [
                        "GET"
                      ],
                      "type": "string"
                    },
                    "queryParams": {
                      "type": "object",
                      "properties": {
                        "verifiable": {
                          "type": "string",
                          "description": "optional - set to 1 to attach `_hash_core` per row (the canonical pre-image of the record_hash for that row) so you can recompute and verify fully offline; omitted by default to keep the payload small - for online verification use free GET /gauge/verify?hash="
                        }
                      },
                      "additionalProperties": false
                    }
                  }
                },
                "output": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "const": "json"
                    },
                    "example": {}
                  }
                }
              }
            },
            "priceUsd": "$0.09",
            "discoverable": true,
            "outputSchema": {
              "type": "object",
              "properties": {
                "rows": {
                  "type": "array"
                },
                "count": {
                  "type": "integer"
                },
                "provenance": {
                  "type": "object",
                  "description": "Freshness and lineage: freshness / freshness_basis / age_hours_now / data_lineage, with the oldest row representing the whole batch"
                },
                "observed_at": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Observation time of the OLDEST row in this batch (ISO) - the most conservative basis"
                }
              }
            },
            "routeTemplate": "/stable/census",
            "priceUsdNumber": 0.09
          }
        },
        "description": "[BATCH+PROOF] Full stablecoin census, latest day, ranked by market cap; lifecycle flags terminated and depegged. Add ?verifiable=1 and every row carries _hash_core so you can recompute the hash offline without trusting us. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.09 per call.",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "GET",
            "required": [],
            "properties": {
              "verifiable": {
                "type": "string",
                "description": "optional - set to 1 to attach `_hash_core` per row (the canonical pre-image of the record_hash for that row) so you can recompute and verify fully offline; omitted by default to keep the payload small - for online verification use free GET /gauge/verify?hash="
              }
            },
            "queryParams": {
              "verifiable": "optional - set to 1 to attach `_hash_core` per row (the canonical pre-image of the record_hash for that row) so you can recompute and verify fully offline; omitted by default to keep the payload small - for online verification use free GET /gauge/verify?hash="
            },
            "discoverable": true
          },
          "output": {
            "type": "object",
            "properties": {
              "rows": {
                "type": "array"
              },
              "count": {
                "type": "integer"
              },
              "provenance": {
                "type": "object",
                "description": "Freshness and lineage: freshness / freshness_basis / age_hours_now / data_lineage, with the oldest row representing the whole batch"
              },
              "observed_at": {
                "type": [
                  "string",
                  "null"
                ],
                "description": "Observation time of the OLDEST row in this batch (ISO) - the most conservative basis"
              }
            }
          }
        },
        "maxAmountRequired": "90000",
        "maxTimeoutSeconds": 300
      },
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3",
      "scheme": "exact",
      "network": "base",
      "amountAtomic": "90000"
    }
  ]
}

Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.