# 数据来源与可信溯源

解释 StampDEX 市场数据如何由比特币全节点与验证索引器共同背书。

> Source: bitcoinuniverseio/core registry, and bitcoinuniverseio/stampdex for the client map, MARKETPLACE_PROTOCOL_REGISTRY sourceOfTruth and indexer entries. Applicable release continuous deployment, verify with GET /api/version. Last verified 2026-09-01. Chain bitcoin/mainnet.

> [!NOTE]
> **简体中文官方文档**：每一笔链上记录均可通过原生交易哈希独立复核，杜绝外部中心化数据源干扰。 核心交易规则为非托管模式，买卖双方按标准费率收取服务费，并于比特币主网进行原子结算。



import SourceOfTruth from '../../../../components/SourceOfTruth.astro';

StampDEX names the source behind every number it shows. This page says where each kind
of data comes from, and how to check for yourself.

## The map

| Data | Source | Operated by |
| --- | --- | --- |
| Bitcoin chain data: UTXOs, fee rates, block height, transaction status, broadcast | Universe Bitcoin node API | Universe |
| Listings, orders, and trades made on StampDEX | The StampDEX database | Universe |
| Stamps and SRC-20 index: deployments, supplies, holders, stamp metadata | stampchain.io | A third party |
| Collection and trait metadata | stampchain.io | A third party |
| Stamp artwork | stampchain.io, cached and thumbnailed by the StampDEX media cache | A third party, served through Universe |
| Token logos | OpenStamp and a wallet icon service, resolved server side and cached | Third parties |
| Counterparty compose for stamp trades | Counterparty API | Universe-operated node |

Bitcoin chain reads use Universe-operated services only. When that node is
unreachable, the affected reads **fail** rather than quietly switching to another
provider. Changing provenance without saying so would defeat the point of naming
sources at all.

## What the registry records

The Bitcoin Universe ecosystem registry records the source of truth for each protocol
independently of the product's own description. This is the platform's record, not
StampDEX's.

### Bitcoin Stamps

<SourceOfTruth protocol="stamps" />

### SRC-20

<SourceOfTruth protocol="src20" />

Two things in those tables deserve saying in plain words.

**The order book depends on the Counterparty data layer.** For stamps, the order book
is the StampDEX Counterparty 分发器 order book and ownership resolution is
indexer-backed through StampDEX and Counterparty. If that data layer is wrong or
behind, the venue is wrong or behind with it.

**Universe does not cross-check the provider against Bitcoin.** The registry records,
for both protocols, that Universe allowlists and validates the exact request it
forwards, and that StampDEX or Counterparty validates the underlying state, but that
Universe does not compare the provider's chain tip against Bitcoin's own tip.

## The third-party dependence, stated plainly

The Stamps and SRC-20 index StampDEX reads is stampchain.io, run by the Bitcoin Stamps
project. StampDEX does not hide this. Market rows carry a source object naming the
origin of each number, and the status endpoint names the operator.

A Universe-operated Counterparty node is syncing. Until it is ready and a Universe
stamps index runs on top of it, index reads stay on stampchain.io. This page will
change when that changes.

## Check it live

```bash
curl https://stamp.api.bitcoinuniverse.io/api/v1/indexer/status
```

The answer names the mempool source, the stamp index source and its lag behind the
Bitcoin tip, the per-kind sources for index, collections, and media, and an `operator`
field that reads `universe` only when every stamp source is a Universe host. It also
states the freshness in plain words.

There is a per-transaction version too, which traces a single transaction through
signed, broadcast, mempool, confirmed, and indexed. See
[Status and version](/docs-stampdex/zh-cn/api/status/).

## Related

- [Freshness](/docs-stampdex/zh-cn/concepts/freshness/)
- [Unknown is not zero](/docs-stampdex/zh-cn/concepts/unknown-is-not-zero/)
- [What you can and cannot do](/docs-stampdex/zh-cn/capabilities/)