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Specification

Overview 1. Conventions 2. Hashing 3. Cryptography 4. Locks and witnesses 5. Transactions 6. Contextual transaction validation 7. Native assets 8. Crypto-agility: scheme schedules 9. Blocks 10. Proof of work and difficulty 11. Monetary policy and parameters 12. P2P protocol 13. Mempool policy 14. Node REST API 15. Versioning 16. Partially signed transactions

Reference

Network parameters All error codes

Docs
SDK
REST API
Protocol
Operate

`validation-error`

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Source: core/PROTOCOL.md · last updated 2026-11-02; core/arrekta_node/api/app.py · last updated 2026-11-02; node-rs/crates/arrekta-node/src/api.rs · last updated 2026-11-02. This page is rendered from the repository at build time; edit the source, not the page.


Category	Node REST API
Surfaces as	HTTP 422
problem+json `code`	`validation-error`

See the error model for the RFC 9457 response shape.

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