Grin: commitment serialization format in utxo api endpoint

Created on 1 Jan 2018 · 3Comments · Source: mimblewimble/grin

We should serialize the commitment as a hex string for convenience (currently serialized as a byte array in the json itself) -

curl http://127.0.0.1:13413/v1/chain/utxos/byids\?id\=08781f222444deb6a672972b543b05bd27f927a2938e08789f744b5034dc24b914
[
  {
    "output_type": "Transaction",
    "commit":
 [8,120,31,34,36,68,222,182,166,114,151,43,84,59,5,189,39,249,39,162,147,142,8,120,159,116,75,80,52,220,36,185,20],
    "switch_commit_hash": null,
    "proof": null,
    "height": 4041,
    "lock_height": 0
  }
]

In contrast we serialize like this for the blocks api endpoint -

{
    "header": {
        "hash": "20eeb00bb8ee8010fc9ade307270cf272d73400487a6c104e8d038aa981924ae",
        "version": 1,
        "height": 4042,
        "previous": "edcb4ebe14f3f779d4ccadd12834d9242fbff7d3b47c40bb31c86bea8d59fadb",
        "timestamp": "2017-12-28T15:44:46Z",
        "utxo_root": "c167a975305a5ef7928f6e144ee1a50a70b1c8160042f07ef4ab29640afd907f",
        "range_proof_root": "c70c745ae2ce81460fb6cab55436418a91fd45e4719eecbe23d2439864eceddd",
        "kernel_root": "d018328db62e99ca5cf70bfe40a14d36ba671a6b3cb2d9cb8c81ca4d76014a31",
        "nonce": 13328075940776718580,
        "difficulty": 544,
        "total_difficulty": 12933876
    },
    "inputs": [
        "08974bcf0bdcabdb56f10959e35cab6917b0419a7c951398ef67c68fb660f4765f",
        "08a94fd0bddec0d713f24ae02d82be0ef8f4ed7e8ab65d0096317adedb1a5966ba",
        "08781f222444deb6a672972b543b05bd27f927a2938e08789f744b5034dc24b914",
        "099d4178e99d37e92282e35ba6cd3c95b0c6cbdbf7fddf5469604051dcc4829e0a",
        "08a8c9f6dc3666cd486fa0011da40d94f2e6652d6a32e7121b46087d54b1fd5425",
        "089c63852e08c6797bcb5a7734c0f62ebca565a5c74d86d299e24dbfe54e900c3b"
    ],
    "outputs": [
        {
            "output_type": "Transaction",
            "commit": "08c4d5f74b74ab29db67bb6d660f015ee57f0f509eef8aa3932ac716ab6e34ad82",
            "switch_commit_hash": "1a182bdcfd345cd94be1c3141327d94d295c0de8",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "c1947aaa2613694af2056ce5930c4caf3ed38e2d29e68ae2ac0aad7e370c74a5"
        },
        {
            "output_type": "Transaction",
            "commit": "08bae25fb3e58624054d9560c61e40124f6e5a5aee0b0e407233cd11e4a150861d",
            "switch_commit_hash": "94bd27947af66b48492147deea237bcd8808688f",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "cf62fb4ef0cbd2ba86066262f7fffd360e6d2092ab3b9557fec5c297d31276db"
        },
        {
            "output_type": "Transaction",
            "commit": "09ed25980a656639ba837655bf4efb04a7f0fadcfccbeb26ec2fbd7d28affccab6",
            "switch_commit_hash": "d9b64c03b6c4a1fff90b2cd1c2aab26d7de021b9",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "daf848cf6ae851c9f864d3f60aaa049181db46f7e5ebb3b02eb03abf4b105054"
        },
        {
            "output_type": "Coinbase",
            "commit": "08d239587f18c3606417cc2a214746f6baaf6f95d1524592079668ae363c54056c",
            "switch_commit_hash": "0cab89d3e9f29aacd71bfccd3bb7339e8075a5b3",
            "height": 4042,
            "lock_height": 5042,
            "spent": true,
            "proof_hash": "abd76ccf8986b9d36c6a67947b79ea22611dfa5b56d1f7d6e09aae70f4d2cf49"
        },
        {
            "output_type": "Transaction",
            "commit": "08b1a6adfafc17e1aba3605fee776d1b84a3f57148fb20fe444eace49254855ac9",
            "switch_commit_hash": "7a45d4fffb59b210140c7e1abecbe0a70321224e",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "739ac80294932eb80086c6f2715f84597426b2627c6c5f7bbe53a2d806ec6800"
        },
        {
            "output_type": "Transaction",
            "commit": "09d2ccdb05280570337a2633b5edef71099210830fe4b00fa63b0f2955afbc9bda",
            "switch_commit_hash": "42d2c1e72398aeaeec81443c47f988f2e4c8baf3",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "40d1d0d31f20ae1c504816e5358f2267a0c7c1bfdeaa51e840e2736022d1c69c"
        },
        {
            "output_type": "Transaction",
            "commit": "0828bfafe8a8c3b6ca248f1c8307be6278f7b08b70d76c84cc032f579712bf6589",
            "switch_commit_hash": "fe676cd9691b88f868db923bf042f249767bd70a",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "736def670dd48b62e5cabb58be4c4260bb362db37928c0e6d25a8cd556d53d62"
        },
        {
            "output_type": "Transaction",
            "commit": "086118f9d2348985648cfe33112a1e800951dbff42c3d80c2868745745509c7bb9",
            "switch_commit_hash": "d06192a44c7d877c40422581ffd0a9d0ce436065",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "563bafca0fa8ad51598433d93d0265d07ded22a3a4968d52de2d3800dfc8876e"
        },
        {
            "output_type": "Transaction",
            "commit": "083fd38d4c95ef6199c5f7ca3ec49b6e28c7e9c2483fe717c20cb18f3089bbd6da",
            "switch_commit_hash": "2bbecf0138c1c00d360fb66aabe9a87e2bfd8883",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "0fe3f74775bedc1ce4205b219f2d2575bef73d80ccd34156f2594e42acc650e9"
        },
        {
            "output_type": "Transaction",
            "commit": "09da32ca0664083a31b4840cfa2bc4303e852f2b408983b5d8ba1da25b9c9da6e9",
            "switch_commit_hash": "9f85336ad71e2578e7366f3e954232a850368cd4",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "4dfa15cdfcf66171d544fa41f813813c3637023a1c383e67ed7d0fc509b5f04f"
        },
        {
            "output_type": "Transaction",
            "commit": "08bee227b967a2725f5eb4cb9c206d25b1ba4d1178fd0828bcf99565614df6cb23",
            "switch_commit_hash": "0495449875a8af172184ab95dc8408757bafdeb6",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "9dad2d7616b18297cf7197fea0483a7d21f34cefdec92ec5c9dc43d9c0e8722c"
        },
        {
            "output_type": "Transaction",
            "commit": "0813981bad1e849d5371ce5a6cb8178a28b9979064c314cfcd0303291f1f3cbb7f",
            "switch_commit_hash": "1703523ff45d1c8bbeec6b45c434ad9a1525ebe1",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "4b0a4f8bf0ebfbc8a3d8019e01deab428e99e1f694cbc7e99470fd3867d65d82"
        },
        {
            "output_type": "Transaction",
            "commit": "0872e351b72aa61682aef71e31e6e48692ca489cb8e76e66c1ad64ecb593b542ac",
            "switch_commit_hash": "1831727103bbfad740bf1c0ed3f84b419d93d0d5",
            "height": 4042,
            "lock_height": 0,
            "spent": true,
            "proof_hash": "ccbc8b1dcf456c0c61d252b644b23edd21365d7041f8253a4ff0bb190b7ffa07"
        }
    ],
    "kernels": [
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4041,
            "excess": "08539e24f76543f2b654a06973f6f11e9de99ce1ace4976f1029a6f39519a304c7",
            "excess_sig": "3045022100d36766d812fe9f754c345513af31dbf17783a2290a82030f6a111346fba67b91022074e2b21823ac3e416271f6b2ade9a395c2801e26c5f9da5f03b353340719ba9a"
        },
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4041,
            "excess": "097d38e16a2a6dce892867b58f6529d145383fd8d29ca8f16c900b8671fdd547e4",
            "excess_sig": "3045022100f5b2c7ef954bb3c0ac3404a1163a987d8f9d64e7b44f6b34053063e78c743bf1022072cc625db2209bbbb0dba8e906b34b9710a941f264c1f802268b5428b2f100f3"
        },
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4041,
            "excess": "08f86ed23aa9f28b8b9b66945894b216b95bb352d0f6012e7e41183bcae12555cf",
            "excess_sig": "3044022046e85075956d21608311f345a2f6a536c6240e30e52c603f26607810c3a4e9b602207481f0dd76186950a4fb0cf54ab12479a2b43673eaab65e7a8ccb50b5e4a8c78"
        },
        {
            "features": "COINBASE_KERNEL",
            "fee": 0,
            "lock_height": 0,
            "excess": "0965cd7909d9df2bef138eaf34d52d13c1258614dfc63e64ef247cee8629156b00",
            "excess_sig": "30450221009cbf768a91d298f6022311dc76589497f15d694c856b4978ff0a5cdd1218805f02207d4f6ba6ebaef7ba895f5247ae76a92ac7079747d50541b7d178b60671ab2e3a"
        },
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4040,
            "excess": "095a849eed110cb125be0ebd53eb39ac324a6d3de1667402e4122e391463e7bad0",
            "excess_sig": "304402204589372210a7a755e2325439e0a398ea9dc603defee81c3479aea92c7b1b8c3302203ec514e38a67ecd7760cf82bcb2392234980e68375205da49d8b2fed64ee1802"
        },
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4040,
            "excess": "0963aeaee87ef7505ece0ad11736c4593f5bc76e286913a11fbd1b94bfc194e306",
            "excess_sig": "3045022100e20092d26f8d760f40de80148d5ca25487b022f7743b963a483a64ed87ae2c70022030550bc387e42e804dc5649e1a42a83902bc7a624dfcfe6562d8049c9e5e11e9"
        },
        {
            "features": "",
            "fee": 8000000,
            "lock_height": 4041,
            "excess": "091ec6c2d7e1c3e0f4ce462f20537caf97ba7f41b4d0c1d50f4d6eb4ab59d66dc9",
            "excess_sig": "3044022023f2551266018226a4adc6ac8004b781529b2ccbf860b61c6678c68704a4459402200f9b02932ad0f994ef6b429aaaef940c8af46723fd0a447c053cfc979c3aff24"
        }
    ]
}

enhancement good first issue help wanted

Source