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API Reference

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LedgerOne is the trust layer for real-world assets on Robinhood Chain. It verifies who may hold an asset, records what the asset is, and proves what it is worth and what backs it — then exposes all of it through dashboards, APIs and webhooks.

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Fetch the verified NAV of an asset in three steps. All endpoints are versioned under https://api.buildledgerone.xyz/v1.

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copy

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Every request is authenticated with a scoped API key sent in the Authorization: Bearer header. Keys are issued per environment (sandbox / production) from the Developer Portal, carry explicit scopes, and can be rotated without downtime.

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LedgerOne sits between real-world operations and Robinhood Chain as five coordinated layers. Data flows up; proofs anchor down.

An asset may only move to ACTIVE when four gates pass: minimum legal documents in the Vault, at least one valid PoR attestation, a configured oracle source, and platform approval (maker–checker).

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Six rules run in strict order before any transfer settles. The first failure rejects the transfer with a standardized reason code.

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KYC is valid 24 months for individuals, 12 for entities. Expiry moves a wallet to RESTRICTED (sell/withdraw only). AML alerts at High severity may freeze a wallet — always with a case ticket and audit log.

NAV = Σ(component values) + cash + receivables − liabilities − accrued fees NAV/share = NAV ÷ tokens outstanding at cut-off

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Approved auditors and custodians sign reserve reports with registered keys. Each report is SHA-256 hashed and anchored on-chain with its cut-off timestamp.

A 0–100 score recomputed at least daily from five weighted components, published as an A–D band. Model weights are versioned; every change is audit-logged.

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Limits are per key. Responses include X-RateLimit-Remaining; exceeding returns 429 with a Retry-After header.

Errors use a consistent envelope with machine-readable codes and a request ID for support.

{ "error": { "code": "DENY_NOT_WHITELISTED", "message": "Destination wallet is not whitelisted for RWA-0142.", "request_id": "req_9f27ab" } }

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Signed events (HMAC-SHA256) delivered with at-least-once semantics and automatic retries over 24 hours.

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ON THIS PAGE

Introduction Quickstart Authentication Environments The Trust Layer Asset lifecycle Transfer compliance NAV & oracles Proof of Reserves Risk scoring API Reference SDKs Rate limits Errors Webhooks Changelog Support