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	3d 17h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["4d93fd27 0e1813fa 28bde5d4 5de934cf"
  "189cd68f d69ed443 7cc2428c 5baac801"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["e095402b b2c0dd0c cfbdbcf6 c52ea07e"
  "d372a450 38b21bb9 a27aad5c 3a58cce3"
  "28ea4d50 b8269f4a 3188f74f 6e7ce4fe"
  "757a6da1 8551765e 5514af08 c3c5c70e"],
 "NONC"
 ["4d93fd27 0e1813fa 28bde5d4 5de934cf"
  "189cd68f d69ed443 7cc2428c 5baac801"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1776610364,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["04063f4f dbfdb193 be09514d 7258b8e6"
   "2c6ecb8e 3da03bac c3f73ca7 a20791d0"]},
 "CERT"
 {"SIG"
  ["db7e25da 9a9722ad c0b0c2d3 22966577"
   "1e2f3268 879f2bb8 7d0bb8ee afce7a96"
   "4af09634 4d761304 efca6de1 84b98f5f"
   "a55ef83c 04cf37a3 126eb883 19fd880f"],
  "DELE"
  {"PUBK"
   ["b34b00cb ab45575c 2faffcbf 34b802a6"
    "5b028220 076e0507 68adaa8e c8e6db5b"],
   "MINT" 1776240000,
   "MAXT" 1776931200}},
 "INDX" 0}

skew	0
expires in	18h 32m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["7b098782 0a519fca d08d21b4 0271ed9d"
  "923d6451 95e7cae1 d9e13245 b568c4eb"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["28ad8af3 923cfdb9 6aee7da7 5925db01"
  "905e5d06 33f0a08b feae633a dfdf0fb7"
  "18433c6a 109eec73 67710da2 cf223a1b"
  "1ad9a6ce 6c116b81 60829f48 62fcd204"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1776610364,
  "ROOT"
  ["d0d210f3 3fc91c0a 13718dd2 0afb4a8d"
   "0b78dbd3 3ba0b658 88a52987 03ded0f3"]},
 "CERT"
 {"SIG"
  ["0e047e25 8f9f3091 1def5989 bb44aa7a"
   "ce30393f de5c8634 13a870e0 315175db"
   "be89cb08 c5042fb7 b7f5fde9 4e6d8163"
   "9b32f923 c9fe15f7 be9b8b5e d4b06704"],
  "DELE"
  {"PUBK"
   ["3564891e 5578623b baffa7f0 71aa5b20"
    "a005da75 8e90b3f3 bd86bf8e 37a86c12"],
   "MINT" 1776590735,
   "MAXT" 1776677135}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["0cc8f595 d5de296b e4c29f33 1e386a43"
  "cb3092cf e97ac004 38243f31 016b59de"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["9401ebf3 a083dd62 c1f453a2 f4494037"
  "995214a6 706d2321 3df0612d ed314bcf"
  "5645f640 7ecad63c fa31af0a f6f5d6e4"
  "4d2e5989 2e25137a 28b73772 1b436d08"],
 "NONC"
 ["0cc8f595 d5de296b e4c29f33 1e386a43"
  "cb3092cf e97ac004 38243f31 016b59de"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1776610364,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["b5aeb19e d3b8fa47 49702a73 e5eeaa6e"
   "e711dd5d 160e5424 50928a2c c320b4b3"]},
 "CERT"
 {"SIG"
  ["7f1f68d4 15ef5132 d1d8de40 c3d78f97"
   "ff87efba e5323956 0c60d6f6 bd847ce7"
   "2a6b5e56 5699e278 457e1f3c ac166088"
   "5083a4ac 8364dc5b e8a799c3 18810b0e"],
  "DELE"
  {"PUBK"
   ["2d2697a1 89113028 8fe6f547 1fb4abd7"
    "f06880bf c3ee0435 51b3a8cf 10066201"],
   "MINT" 0,
   "MAXT" 18446744073709551615}},
 "INDX" 0}

skew	0
expires in	9mo 13d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["143b608a 62836fd2 cb2c6386 c4dd23d2"
  "f245233c 5ff13903 51b7900d 30bdfe95"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["bb55c8d0 b60cbd64 ec13db62 c09fdb9c"
  "a8048e01 7ebf6f3a 6b9873a3 eb49aeae"
  "4c8babea 3d652a4c 30e3bc37 8950998c"
  "d95529d1 ef4d8b49 63ae4c5b 0a64c109"],
 "NONC"
 ["143b608a 62836fd2 cb2c6386 c4dd23d2"
  "f245233c 5ff13903 51b7900d 30bdfe95"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1776610365,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["4bd219c8 84dfddf7 515ea07f 5dbb139d"
   "72025f7c 44c6902a ce6567b6 5763a112"]},
 "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	14h 49m

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["a8f7e405 1782a371 94a6cb51 d94ac8f1"
  "3d2c3c9e 32d0c049 ec3de42b 40bc6c66"],
 "NONC"
 ["43223cbc a6cafadd 59f1368b 3732c3b7"
  "7fd384d1 f9411170 0d66cd23 97494971"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["1a914ace 7732421e d83af057 534e0498"
  "800e9f78 21323a23 cbad4d96 7203ca13"
  "5940825d 955413e3 6a8d991e 810f18aa"
  "e92d9fce 03e6c75f 8aa28126 ee5a2201"],
 "NONC"
 ["43223cbc a6cafadd 59f1368b 3732c3b7"
  "7fd384d1 f9411170 0d66cd23 97494971"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 3,
  "MIDP" 1776610365,
  "VERS"
  ("0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000005"
   "0x80000006"
   "0x80000007"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["f0254f94 8dbca22c 0f56bee0 e71348d0"
   "fa39cacc 39c46c19 314de481 736b8da2"]},
 "CERT"
 {"SIG"
  ["73d67ce2 6ca2966b 5f1b89a3 e58e6e90"
   "f146f9be 89a43a1a 59dd657a 0ba1c6f5"
   "9eab5627 c234c524 a92492ec bbdde114"
   "75bb409f 7b75bac1 a2996bde e299160d"],
  "DELE"
  {"PUBK"
   ["724bea3c f77b0955 d85f00a3 b12fef00"
    "af71914a d84ba388 96d21212 ca0927a5"],
   "MINT" 1776577335,
   "MAXT" 1776663735}},
 "INDX" 0}