OlleChain core Source Code

License

Differences from the original Bitcoin-core

 static const int COINBASE_MATURITY = 5; // 100 -> 5
 consensus.nPowTargetTimespan = 60 * 60; // 2week => 1 hour
 consensus.nPowTargetSpacing = 60; // 10 min => 1 minute
 static const CAmount MAX_MONEY = 9223372036854775000; // unlimited
 CAmount GetBlockSubsidy() // It's removed the subsidy halflife code.

How to find Olle-data transaction.

step 3 example code

 var ret = tx.vout.find(vo => {
 return vo.value == 0; // this is op_return data
 });
 var result = ret.scriptPubKey.asm.replace('OP_RETURN ', '');
 result = Buffer.from(result.toString(), 'hex').toString('utf8');
 result = JSON.parse(result);
 const sign = result.sign;
 const node = result.node;
 const Message = require('bitcore-message');
 function signVerify(signature, message) => {
 var verified = Message(message).verify(g_G.VAR.OLLE_SIGN_ADDRESS, signature);
 return verified;
 }
 assert ( signVerify(sign , node ) == true );

Olle-Data transaction sample

{
 "txid": "034b3db2d7423290e5e3bfec67467254f1888d80999a44a24ba10e291cee157f",
 "hash": "034b3db2d7423290e5e3bfec67467254f1888d80999a44a24ba10e291cee157f",
 "version": 2,
 "size": 4771,
 "vsize": 4771,
 "locktime": 0,
 "vin": [
 {
 "txid": "cc0aec3092e5ff9611597f169640146b1db8840bb1653ce0a41e8f2243bc8e00",
 "vout": 0,
 "scriptSig": {
 "asm": "3045022100df06416735b82bc93cc0275e00b6d4a2087cf64885f586ab0a780528867f735e0220710f48d2a0e8a4eced8ff800ef367e3f85a3f936e3889cb33055e1f4afc393e8[ALL] 03c5e17b1041ad1f50dddc124125ee1b528c7b75e1eb91b3cee31e51f98fb9f263",
 "hex": "483045022100df06416735b82bc93cc0275e00b6d4a2087cf64885f586ab0a780528867f735e0220710f48d2a0e8a4eced8ff800ef367e3f85a3f936e3889cb33055e1f4afc393e8012103c5e17b1041ad1f50dddc124125ee1b528c7b75e1eb91b3cee31e51f98fb9f263"
 },
 "sequence": 4294967295
 }
 ],
 "vout": [
 {
 "value": 0,
 "n": 0,
 "scriptPubKey": {
 "asm": "OP_RETURN 7b227369676e223a2 ... ... ... 0322d32305430343a34323a30352e3239365a227d5d7d",
 "hex": "6a4db2117b2273696 ... ... ... 1392d30322d32305430343a34323a30352e3239365a227d5d7d",
 "type": "nulldata"
 }
 },
 {
 "value": 0.00001012,
 "n": 1,
 "scriptPubKey": {
 "asm": "OP_DUP OP_HASH160 f64e33fe767406c63306104f3b07882e4618e3b9 OP_EQUALVERIFY OP_CHECKSIG",
 "hex": "76a914f64e33fe767406c63306104f3b07882e4618e3b988ac",
 "reqSigs": 1,
 "type": "pubkeyhash",
 "addresses": [
 "1PTLuqYnttxvcyR1rRjySUa6x2b19HyrK5"
 ]
 }
 },
 {
 "value": 0.2319392,
 "n": 2,
 "scriptPubKey": {
 "asm": "OP_DUP OP_HASH160 a65d0fe4961584ae5d08c216a52b00bdc6d42272 OP_EQUALVERIFY OP_CHECKSIG",
 "hex": "76a914a65d0fe4961584ae5d08c216a52b00bdc6d4227288ac",
 "reqSigs": 1,
 "type": "pubkeyhash",
 "addresses": [
 "1GAeeupQZDLmWZFHR4a7UC7N4oLwbqU64b"
 ]
 }
 }
 ],
 "hex": "0200000001008ebc43228f1e ... ... ... d08c216a52b00bdc6d4227288ac00000000",
 "blockhash": "00000000b00111324a6a27409d0a541145da3611c830ebba582c5c344293b90b",
 "confirmations": 9869,
 "time": 1550637759,
 "blocktime": 1550637759
}

Olle-Data prev-signing data

 var sign = g_G.bitcoin.signMessage('olle', OLLE_SIGN_PRIVATE_KEY );
 let txt = JSON.stringify({
 sign: sign,
 node: 'olle',
 ver: 1,
 sendDate: new Date(),
 type: rq.type,
 data: dataList,
 });
 var op_return_data = Buffer.from(txt).toString('hex');