Litecoin (LTC)

UTXO-based signing with the same input/output contract as Bitcoin. Provide the full previous transactions for the inputs you spend; the device signs each input by its keyPath. Only the chainId, keyPath, address format and amount unit differ from Bitcoin.

Field	Value
Family	Bitcoin (UTXO)
coinType	2
keyPath	m/44'/2'/<accountIdx>'/0/0
addressFormat	legacy (SegWit not supported via bridge)
amount unit	litoshi (1 LTC = 1e8)
chainId	bip122:12a765e31ffd4059bada1e25190f6e98/slip44:2

Supported Methods

Method	Supported
getAddress	✓
signTransaction	✓
signMessage	✗
signTypedData	✗

Requirements

Minimum firmware for each method. The two models are on different version lines, so DCENT Biometric Wallet and DCENT X are listed separately (the numbers are not comparable across models). Below this the request returns the firmware-update error (5005) and the bridge prompts to update.

Method	DCENT Biometric Wallet	DCENT X
getAddress	1.5.1 or higher	1.0.0 or higher
signTransaction	1.5.1 or higher	1.0.0 or higher

addressFormat

Format	Path	Prefix	Status
legacy (P2PKH)	m/44'/2'/0'/0/0	L… (base58)	Supported
segwit-native (P2WPKH)	—	ltc1… (bech32)	Not supported
segwit-wrapped (P2SH-P2WPKH)	—	M… (base58)	Not supported

warning

Litecoin is legacy-only through the DCENT bridge. Only legacy P2PKH (base58 L…, derived from m/44'/2') is supported — DCENT has no Litecoin SegWit variant, and a m/84' keyPath is rejected by the BIP-44 gate. The native-SegWit / ltc1… examples shown below are not currently accepted; use the legacy m/44'/2' path. (Litecoin legacy addresses begin with L, not 1 as on Bitcoin.)

getAddress — account address

Derive a Litecoin account address for a keyPath. The connector returns the legacy P2PKH address (base58, L…, from m/44'/2'). Litecoin SegWit is not supported through the DCENT bridge, so addressFormat has no effect here. Call this before building a transaction.

Parameters

Field	Type	Required	Source	Notes
chainId	string	Required	App	CAIP-19 — fixed for Litecoin
keyPath	string	Required	App	BIP-44 (legacy m/44'/2')
addressFormat	enum	Optional	App	legacy only — SegWit not supported

Request

await dcent.getAddress({
  chainId: 'bip122:12a765e31ffd4059bada1e25190f6e98/slip44:2',
  keyPath: "m/44'/2'/0'/0/0"
})

Response

Field	Type	Description
header.status	string	success on completion
body.command	string	getAddress
body.parameter.address	string	Litecoin account address. With the default path this is a legacy P2PKH base58 address (L…). No public key is returned for the Bitcoin family.

{
  "header": {
    "version": "1.0",
    "status": "success"
  },
  "body": {
    "command": "getAddress",
    "parameter": {
      "address": "L…"
    }
  }
}

signTransaction — UTXO transaction

The wire payload mirrors Bitcoin: payload.transaction carries inputs[] and outputs[]. Each input references the full previous transaction hex so the device can verify the spent value before signing.

payload.transaction:

{
  "inputs": [
    {
      "rawTransaction": "<prev tx hex>",
      "index": 0,
      "txType": "p2pkh",
      "keyPath": "m/44'/2'/0'/0/0",
      "sequence": 4294967295
    }
  ],
  "outputs": [
    {
      "txType": "p2pkh",
      "amount": "200000",
      "addresses": [
        "L…"
      ]
    }
  ]
}

Field	Type	Required	Source	Unit	Description
inputs[].rawTransaction	hex	Required-Real	Wallet	—	Full prev-tx hex of the UTXO being spent; must be device-owned
inputs[].index	number	Required	App	—	UTXO output index (utxo_idx)
inputs[].txType	enum	Required	App	—	p2pkh
inputs[].keyPath	string	Required-Real	Wallet	—	Path that signs this input (legacy m/44'/2')
inputs[].sequence	number	Optional	App	—	Not defaulted to 0xffffffff — when omitted the bridge uses 0xfffffffd for RBF-enabled coins and leaves it unset otherwise. Also note the first input's value applies to the whole transaction.
outputs[].txType	enum	Required	App	—	Output script type
outputs[].amount	string	Required	App	litoshi	Output value (1 LTC = 1e8 litoshi)
outputs[].addresses	string[]	Required-Real	App	—	Recipient. Only addresses[0] is used, and exactly one non-change output is allowed — more than one destination is rejected with param_error. Use a second output with txType: 'change' for change.

Common Mistakes

danger

Reusing Bitcoin coinType / keyPath — Litecoin is slip44:2, so the path is m/44'/2'/0'/0/0, not …/0'/… (Bitcoin's coinType 0). Trying to use native SegWit — Litecoin SegWit (ltc1…, m/84'/2') is not supported through the DCENT bridge; use legacy m/44'/2' P2PKH (L…). A m/84' keyPath is rejected. Missing change output — any unspent input value silently becomes the miner fee. Amounts not in litoshi — values are integers in litoshi (1 LTC = 1e8), never decimal LTC.

• getAddress (addressFormat)
• signTransaction (index)
• Bitcoin (same payload)