# Changelog

Dated changes to Solva and its documentation.

Changes to Solva and these docs, newest first.

## 2026-11-04
**Reserves read on chain.** An institution's reserve source is chosen per institution: `attested` (a custodian-signed balance) or `onchain`, where the orchestrator reads the balance of its Stellar accounts from Horizon on every cycle. See [Connect a reserve source](/docs/operate/connect-a-reserve-source).

**The demo reads the contract.** The demo's record step reads `get_latest_proof` from the institution's registry on Stellar, and the holder step runs `verify_inclusion` on the contract. A third example institution, Harbor Wallet, holds real Testnet USDC read from Stellar.

**Cycle trigger requires the API token.** `POST /v1/cycles` returns 401 without the orchestrator's API token. Reads stay public. See [REST API](/docs/build/rest-api).

**Waitlist.** Joining the waitlist on joinsolva.xyz saves the address once and sends a confirmation.

**Documentation rebuilt.** The docs are reorganized by reader into Overview, Operate, Verify and Build. Every page is rewritten and checked against the code. Build adds a contract reference with errors 1 to 6 and the published event, a REST API reference for every orchestrator route, and pages for the proof format and the oracle tools. Every page is available as Markdown, with `llms.txt` and `llms-full.txt` (see [AI tools](/docs/build/ai-tools)).

**Reserve source renamed and priced in USD.** The code uses one name for where reserve figures come from: a reserve source, either `attested`, where a custodian signs each balance, or `onchain`. The orchestrator's adapter is `infrastructure/attested` and its port is `ReserveSource`. The sandbox's mock custodians live in `internal/reserves` and report balances in `USD`. See [Sandbox](/docs/build/sandbox).

**Website rebuilt.** [joinsolva.xyz](https://www.joinsolva.xyz) is rebuilt for anchors and custodial apps, with pages for each, how Solva works, the coverage record, trust, and the demo at [joinsolva.xyz/demo](https://www.joinsolva.xyz/demo).