RoughTime

This host runs a RoughTime synchronization server implementing Revision 15 (0x8000000c) of the IETF protocol. RoughTime provides cryptographically verifiable time without requiring a trusted network path.

New to RoughTime? Read our announcement: Why We Built a New RoughTime Implementation

We operate this server for community benefit. It is intended for synchronization, timestamping, and testing. Please use it responsibly.

Server Information

Address	roughtime.sturdystatistics.com
Port	2002
Protocol	UDP
Public Key	NqIjwLopQn6yQChtE21Mb97dAbAPe5UOuTa0tOakgD8=

Verify this key via DNS:
dig -t TXT roughtime.sturdystatistics.com

Quick Start

You can query this server immediately using our command-line client

clj -M:run :server-name "SturdyStatistics"

Tip: For verifiable time, query at least three independent servers and verify the response chain. Cloudflare maintains a public ecosystem list here.

What is RoughTime?

RoughTime is a secure time service. Servers sign batches of client requests, chaining them with Merkle trees. Each response proves the server’s notion of time and prevents undetected backdating/forward-dating across requests.

Live Example Results

Sturdy StatisticsCloudflareint08hroughtime.seTXRyan

skew	0
expires in	5d 13h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["66680899 9e141c7e 3ef153b7 1527a95f"
  "44b04ee4 ece91570 59141c8f 3d193182"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["7a01b7f9 cd8a63ce f9f72589 13cdb6fc"
  "da8d7185 a13cc657 614e29fd 18095e64"
  "8ee686c4 a8e64ab4 f96d6cf9 58c77c7f"
  "035025c9 ada578fb 13175458 d0e8f30e"],
 "NONC"
 ["66680899 9e141c7e 3ef153b7 1527a95f"
  "44b04ee4 ece91570 59141c8f 3d193182"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1786129199,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["e6bf6c98 e46e9b31 3dd9ad12 93eb3954"
   "8676d0d2 d3657830 e4c44195 12eb28c4"]},
 "CERT"
 {"SIG"
  ["0c300bc4 45f930de e2484176 cf623bcc"
   "161c70a3 7e3f1e58 b796bca2 61d5921f"
   "c8241c26 570abc3d ce6f73fe a3652180"
   "905a7796 52fb3f45 d278bd25 67faf306"],
  "DELE"
  {"PUBK"
   ["f69a90ec 0ccf147d ec520c48 26b16334"
    "c93c8444 c75802dc 8b099d76 77b6b69f"],
   "MINT" 1785916800,
   "MAXT" 1786608000}},
 "INDX" 0}

skew	0
expires in	11h 58m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["0cb3171f efdcb892 17ebdb4b 33764bbc"
  "f8c35d87 dd0d3d21 ac776b81 f6b0e9e7"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["9e498921 baf9c37d ad561bc9 aeb8ce1e"
  "3382573e ad665154 f9a26c32 90cb39d5"
  "a72ea444 d10ac61b 8e84c254 d837ad73"
  "abd35751 66448df1 d1ed85e3 6140e80a"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1786129199,
  "ROOT"
  ["d1a13677 fe391a67 88b2570e a5219482"
   "b2439f7b d3f46f43 71ab2cbd be9fff4b"]},
 "CERT"
 {"SIG"
  ["e58254ff 9c9a4d2d 897f67b1 0fcbf9ca"
   "c550de5a 014f127f 0546e696 c956f692"
   "baa0980d 9f862b25 28cc69d9 d2974250"
   "06efe77a 54f811b5 6ad140bf e575d40b"],
  "DELE"
  {"PUBK"
   ["9f4149d4 aaba2350 01394e13 eba09594"
    "8110f648 e7756848 a7ebb1a1 2170a403"],
   "MINT" 1786085893,
   "MAXT" 1786172293}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["b2e581ff d8a2d548 79764c07 bcf9c486"
  "eb0dda5b 20fcda1c d0707c06 7c82cf20"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["0d5238f3 cfe41c4f 406cced0 33fab7ad"
  "b14d3519 7ea64547 3b58413d 39d26ca8"
  "e97d36b9 97de8aed fc3cddf2 e980faf2"
  "fc6da325 7e167d07 0de6fde7 ca4d330b"],
 "NONC"
 ["b2e581ff d8a2d548 79764c07 bcf9c486"
  "eb0dda5b 20fcda1c d0707c06 7c82cf20"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1786129199,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["98912ef9 bc0aac59 74ebb66c 27abef11"
   "e46a42a6 154e751f 30eba8b1 1d936423"]},
 "CERT"
 {"SIG"
  ["9dced31e dbe86abb 5ccf45ac fc8b74f8"
   "952aafb8 4ed774f9 94cc2bf1 606491c0"
   "c679b16d e60f2b87 00a38c52 3ca99594"
   "1c1d2788 5f2f2911 135789c8 a7ca010c"],
  "DELE"
  {"PUBK"
   ["53467b27 924d0a93 1e566c03 cad7262f"
    "90421046 c9aeda84 38c44b51 074351f0"],
   "MINT" 0,
   "MAXT" 18446744073709551615}},
 "INDX" 0}

skew	0
expires in	5mo 25d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["039805b7 b888df36 ae06a7aa bd2e7093"
  "698e8d80 1887fde1 a781417e f270039a"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["cf1be89d 51e52efc d1eec4b1 b00f39d0"
  "613d406b 2550317f f7530fbd d1038021"
  "40fecb82 467bdbe0 4327453b 267dd417"
  "1b28877a 064e8c58 d74b2a65 5932eb06"],
 "NONC"
 ["039805b7 b888df36 ae06a7aa bd2e7093"
  "698e8d80 1887fde1 a781417e f270039a"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1786129200,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["9da11191 cb1f74ee 5a83692a ca8e3375"
   "5eea3570 4ee73bb7 851d7f73 211be631"]},
 "CERT"
 {"SIG"
  ["3a20f9a3 e7ad50b0 636f3819 61266ab0"
   "283e493a 5f118dd3 f7f47524 fe3b3b24"
   "4ed5653f 333061c8 0bfd7836 82607698"
   "ab5ab5f9 3d8ccff2 bfb600ec 4a4e610e"],
  "DELE"
  {"PUBK"
   ["14c0ff4f a3aa7597 7c4f14b0 0b974646"
    "fb241196 92f35bf2 4d496cf7 119a50a4"],
   "MINT" 1768694400,
   "MAXT" 1801440000}},
 "INDX" 0}

skew	0
expires in	9h 16m

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["a8f7e405 1782a371 94a6cb51 d94ac8f1"
  "3d2c3c9e 32d0c049 ec3de42b 40bc6c66"],
 "NONC"
 ["a7747cc5 4194bb9d ffb2a832 ce07bd80"
  "ba45c349 2e2cdc26 0c6469be 3b9a525c"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["fcfd2d7b 7f48117b ccfb2e3f 6a4c7868"
  "289aff87 68941c3d bbe7d530 782acaf4"
  "eb2a15c8 6b581be0 a46edfd3 03fb5f6a"
  "f9a9e85f 79fcfbdc 104531ab fc010c0b"],
 "NONC"
 ["a7747cc5 4194bb9d ffb2a832 ce07bd80"
  "ba45c349 2e2cdc26 0c6469be 3b9a525c"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 3,
  "MIDP" 1786129200,
  "VERS"
  ("0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000005"
   "0x80000006"
   "0x80000007"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["5c5fb02f 7be1c3b5 79a35e25 3c2dd25f"
   "e76fb4d9 cb79bf7a d75fe213 b8b113be"]},
 "CERT"
 {"SIG"
  ["672ed6bf 6b734bca 8609b80b 3b1b5acb"
   "5d5c6ce6 77986ac4 bfca3e0e 2e0da5b0"
   "2a2c4c71 a4b585a5 7305d0f8 2a5ed00d"
   "53b2880b 99bbfd33 b3f3178e 8876c10d"],
  "DELE"
  {"PUBK"
   ["d33ca7ae d7fcc736 472d9597 4ada5b42"
    "b5561d8a 0c86a1b6 a8a4d866 7017d8b5"],
   "MINT" 1786076175,
   "MAXT" 1786162575}},
 "INDX" 0}