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Lithos

A decentralized mining pool protocol on Ergo. Miners build their own blocks; contracts pay them for proven work.

Live on Ergo mainnet
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© 2026 Lithos Protocol. The Lithos client, its contracts and Lithos Launcher are open source under CC0.λίθος — stone
Docs/Client API/Difficulty Forwards

List open offers

get/forwards/offers

Offers a fill in a coming block could still take: holding the maker's whole side, unexpired, and with a window that starts 2 to 120 epochs after the current one. Unconfirmed offers are included and offers already being spent are not. Ordered by window start, then length, then strike.

Query parameters

  • offsetintegerdefault 0
  • limitintegerdefault 50

Responses

200One page of open offersDFOfferBook▶
  • heightinteger · int32required
  • currentEpochinteger · int32required
  • ▶
    offersDFOfferView[]required
    • boxIdstringrequired
    • makerstringrequired

      Address the maker is paid to.

    • makerSidestringrequired

      long is paid when the window's mean difficulty is above the strike, short when below.

      one oflongshort
    • strikestringrequired

      Difficulty the window's mean is measured against.

    • notionalstringrequired

      LIT base units.

    • marginstringrequired

      Each side's margin, a fifth of the notional, and the most either side can lose of it.

    • windowStartinteger · int32required
    • windowLengthinteger · int32required
    • windowEndinteger · int32required

      The window's last epoch.

    • expiryinteger · int32required

      The last height a fill can be mined at.

    • lastFillHeightinteger · int32required

      The last height a fill can actually be mined at: the expiry, or earlier when the window would start less than 2 epochs after the fill.

    • litstringrequired

      LIT base units the offer holds.

    • nanoErgsstringrequired
    • takerLitstringrequired

      LIT base units a fill takes from the taker.

    • takerNanoErgsstringrequired

      nanoERG a fill takes from the taker, network fee included.

    • impliedMovenumber · double

      The strike against the current difficulty, as a fraction.

    • impliedMoveNextnumber · double

      The strike against nextDifficulty, when known.

    • minebooleanrequired

      Whether this wallet made the offer.

    • fillablebooleanrequired

      Whether this wallet's fill sent now would be accepted.

    • refusalstring

      Why not, when fillable is false.

  • totalintegerrequired

    Open offers in all, before offset and limit.

  • truncatedbooleanrequired

    Whether the scan stopped at 2,000 boxes, so older offers may be missing.

400`offset` is negative or `limit` is outside 1 to 200.ApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

503Node or index unavailable. Never returns a partial list.ApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

defaultErrorApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

← PreviousDifficulty accumulator and the next epoch's difficultyNext →Create an offer
Request
curl -X GET "http://localhost:9000/forwards/offers"
Response
{
  "height": 0,
  "currentEpoch": 0,
  "offers": [
    {
      "boxId": "string",
      "maker": "string",
      "makerSide": "long",
      "strike": "string",
      "notional": "string",
      "margin": "string",
      "windowStart": 0,
      "windowLength": 0,
      "windowEnd": 0,
      "expiry": 0,
      "lastFillHeight": 0,
      "lit": "string",
      "nanoErgs": "string",
      "takerLit": "string",
      "takerNanoErgs": "string",
      "impliedMove": 0,
      "impliedMoveNext": 0,
      "mine": true,
      "fillable": true,
      "refusal": "string"
    }
  ],
  "total": 0,
  "truncated": true
}