On-chain, on demand
Sigma reads the distributor's history from Blockscout and JSON-RPC: every stock distribution you received and every treasury buy batch. No database, no indexer, no cached guesses.
Grounded intelligence · Robinhood Chain
Every figure Sigma states is summed from the chain, never invented.
Sigma is a read-only holder ledger and a factual RWA analyst for The Index ($INDEX). It turns a wallet address into an accumulated tokenized-stock basket, cost basis, and distribution history, then answers questions using only that data.
Read-only · no wallet connect · no custody · Information, not financial advice.
Stock
Value received
AAPL$0.00
NVDA$0.00
TSLA$0.00
MSFT$0.00
14 more$0.00
Basket value received
$0.00
The pipeline
Read the chain. Sum it. Answer from it.
Three stages, in order, and the order matters. Nothing downstream states a number the stage above it did not compute.
Distributions become a basket
It pairs treasury USDG-out to stock-in (FIFO) into a price index, then sums your receipts into shares, cost basis, value, P&L, and effective APY. Lots it can't price exactly are flagged as estimates.
The agent renders, never invents
The Sigma Agent replies in plain language, but every number comes from a tool call over that ledger. If a tool returns nothing, it says so. It never predicts prices or gives advice.
The tool
A holder ledger you can trust because it holds nothing.
Paste an address; read everything back. Sigma never asks you to connect a wallet, sign, or hand over funds; the read-only guarantee is the whole point.
- Accumulated basketEvery tokenized stock you've received, summed to a live position.
- Distribution historyEach receipt, filterable by ticker and date.
- Cost basis & P&LFIFO cost basis valued at receipt time; approximate lots labelled, not hidden.
- Tax-ready CSVExport the whole ledger for your accountant or filing software.
accumulated_basket
| Ticker | Shares | Cost basis | Value | P&L |
|---|---|---|---|---|
| AAPL | 0.0214 | $4.51 | $4.62 | +2.4% |
| NVDA | 0.0031 | $3.02 | $3.18 | +5.3% |
| TSLA | 0.0076 | $2.15 | $2.07 | −3.7% |
| MSFT | 0.0049 | $1.90 | $1.94 | +2.1% |
| Σ total | n/a | $11.58 | $11.81 | +2.0% |
The agent
An analyst that can only tell you what the data says.
Sigma Agent is a factual RWA/Index analyst. Its persona is built around a grounding contract, encoded directly in the system prompt. The model is a renderer over deterministic tool output, not a source of facts.
01For any number, call a tool first: never state a figure a tool didn't return.
02If a tool errors or returns nothing, say so, never guess.
03Relay the data's own caveats; approximate lots stay labelled.
04No price predictions, no buy/sell/hold advice.
05End with “Information, not financial advice.”
Holder
@sigma what's my cost basis for TSLA? 0x9f…3ac2
Sigma Agent
Your TSLA lot: 0.0076 shares, cost basis $2.15, current value $2.07 (−3.7%). One older lot uses an approximate price, flagged in your ledger.
Information, not financial advice. · Full data → sigma
The agent cannot know your wallet; it asks for an address, then answers only from tool output for that address.
The data moat
The same numbers, as an API other builders can call.
The agent's tools are thin wrappers over a read-only HTTP API. It reuses the ledger's math and adds none: deterministic, typed, and explicit about failure so any caller can honestly report “couldn't fetch.”
- DeterministicSame address, same computed figures. The agent adds no math.
- Read-onlyPublic reads, edge-cached; no writes, no auth for public data.
- Explicit errorsEvery failure is
{ error, code }, no silent nulls dressed as data.
GET /api/agent/*read-only
# a wallet's headline figures GET /api/agent/summary?address=0x… GET /api/agent/basket?address=0x… GET /api/agent/distributions?address=0x…&ticker=&since= GET /api/agent/ledger?address=0x… # protocol-wide, no address GET /api/agent/protocol GET /api/agent/token/index # → { data } on success · { error, code } on failure
What's next
Planned: a Sigma token on Pons.
The Sigma token is planned to launch on Pons, a non-custodial, fixed-supply token launchpad on Robinhood Chain, where every transaction goes through your own wallet. The token and the agent stay separate: holding unlocks premium agent features, checked client-side against your balance.
1BFixed supply
PonsLaunchpad on Robinhood Chain
Non-
custodialYou submit every tx from your wallet
custodialYou submit every tx from your wallet
Read-onlyAgent never trades or custodies
Pre-launch: nothing here is on sale. No token exists yet. Legal review and community demand-validation come first; figures describe the planned mechanism, not an offer to sell a security. Sigma is information tooling, not financial advice.
Σ · the sum of what you actually hold
Numbers you can check, from a tool that holds nothing of yours.
Read-only · no custody · Information, not financial advice.