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	6d 9h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["62f64817 0da565ea 91da5972 a220c2bb"
  "b7401671 72483f70 363f0080 ccbcd203"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["8a37aac8 2c836997 e5deb947 539862a6"
  "e86fefbb 91f4c43a 3d8d65a6 3816ac7b"
  "c6550dd4 309ee3f9 025f9a40 3fe74852"
  "8fbdfd86 0f621e1e 1b7c81ca 04c22904"],
 "NONC"
 ["62f64817 0da565ea 91da5972 a220c2bb"
  "b7401671 72483f70 363f0080 ccbcd203"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1783714801,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["de4f1f14 bb4e6a39 6380f841 8c12295d"
   "e9add729 18c31a2d d8762f49 18886791"]},
 "CERT"
 {"SIG"
  ["4bbdc833 e5349068 2778bdc4 7e6e8db9"
   "04122727 b53cd519 9f1d18fc 11f05204"
   "cf58a569 1423b14f e1d2b131 060613bb"
   "6c209403 95b8a4b5 ed8e2838 0237230f"],
  "DELE"
  {"PUBK"
   ["21e3f16a 3921fdb6 c6ba39af 20e6baf1"
    "224a8c42 2f6443a3 6d459600 15f9cce8"],
   "MINT" 1783576283,
   "MAXT" 1784267483}},
 "INDX" 0}

skew	0
expires in	13h 42m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["a3b16fcb 59e46915 7b897ba7 c13a7616"
  "3edf30f7 5bee81ca dd9b930f 36710fe8"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["44ada0d3 66aadbd7 803d84b8 0f4a94f8"
  "e51b49af 77d539d1 961ab3c4 8a8b73eb"
  "a461c96d a4cd0f4f 04e2dbc8 ed49b404"
  "e7e1c536 def6a0ba fc6b0653 4927e701"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1783714801,
  "ROOT"
  ["153c34a4 1920f443 24d59c39 44e428bf"
   "86e537ba 259bf8e0 a36aee81 31bc2488"]},
 "CERT"
 {"SIG"
  ["9d37474e b6bdcf72 fa0eb9e0 8ebfb368"
   "6ebe1342 e409e3c9 673a7799 22c48c18"
   "9452ebbb 255c16e2 eedc0377 e7769406"
   "1a816b73 d69ed87e 658dee42 87ce0f0a"],
  "DELE"
  {"PUBK"
   ["3e871008 524aee73 77347375 eba44fad"
    "4504ac52 2ebf1097 d30f6500 44b23ef7"],
   "MINT" 1783677775,
   "MAXT" 1783764175}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["f35a8554 ac16caf3 3f720c60 e1772f04"
  "e8c42ece b457e08c 6c0edc27 f191b52b"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["487d336e ffa2f2be 0ba422c9 be4e16e4"
  "1435861a c69c8d2b 3ff6b317 45937ca3"
  "0a645c7b 897ba6ea f8d40a06 1fcec240"
  "adfdbbe6 598028c8 138a8dd6 9fbe2f0e"],
 "NONC"
 ["f35a8554 ac16caf3 3f720c60 e1772f04"
  "e8c42ece b457e08c 6c0edc27 f191b52b"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1783714801,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["f07cf3ba 152a6c00 c4664b00 e41c41dc"
   "6c707295 e0c4e3d7 70a03793 7c5b8827"]},
 "CERT"
 {"SIG"
  ["e7b21e7a f98ceee1 5a13e6d1 967b4fe6"
   "2980c5ae 258922a1 daa69c5c 13342335"
   "3ea69a2c 0acfaa21 61250e9f 70648048"
   "e4411000 187b1353 e31a7c46 7567b00c"],
  "DELE"
  {"PUBK"
   ["34291a8d 25d93aea e9bd2849 e828bbfc"
    "ee84207e 71e06c2d 3cde5174 13de99b0"],
   "MINT" 0,
   "MAXT" 18446744073709551615}},
 "INDX" 0}

skew	1
expires in	6mo 22d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["9108a46d 0c2826cc 22f2d7aa e57c3dbd"
  "0ead9e89 73862db3 9ceabfc1 3d4185a2"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["86492912 1f2257b1 9a7eec2e 28bad8ab"
  "81b88905 c3c4f260 7e733227 011932a5"
  "009d7899 03798ddc b184191b 7b768181"
  "4e9ec09b a6790014 6809af91 538d7d0e"],
 "NONC"
 ["9108a46d 0c2826cc 22f2d7aa e57c3dbd"
  "0ead9e89 73862db3 9ceabfc1 3d4185a2"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1783714801,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["2a50cda0 cddd2aa2 f371f8e5 a3fd7895"
   "7526a437 7db1c76a df6d881e c287b0d7"]},
 "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	13h 7m

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["a8f7e405 1782a371 94a6cb51 d94ac8f1"
  "3d2c3c9e 32d0c049 ec3de42b 40bc6c66"],
 "NONC"
 ["7c4a9669 44529c9f 747ad522 6d934640"
  "f4318e67 b2da3f97 0f0f3315 9ff51079"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["0486adb7 112d6277 ddd7d0d8 4798c3a0"
  "202c4e65 5a2c76d7 d4f77092 7ab6964a"
  "93c46437 e0febc1d 01174448 530270d3"
  "ab299572 a79962f4 6aef1822 dcb6ad05"],
 "NONC"
 ["7c4a9669 44529c9f 747ad522 6d934640"
  "f4318e67 b2da3f97 0f0f3315 9ff51079"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 3,
  "MIDP" 1783714802,
  "VERS"
  ("0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000005"
   "0x80000006"
   "0x80000007"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["0d0b5062 d1adcb94 8658b0e7 5d06cebd"
   "cb2d72ed 575f623b 7fdfb956 633d20c1"]},
 "CERT"
 {"SIG"
  ["c24b6e0f 744e9e93 41ab483a a451b80c"
   "ad322e47 abf34cc6 817b8698 3c1d4c70"
   "c4577473 59c93096 24243391 57bf84eb"
   "03b1ecb2 f9fd2b06 1f66e763 dd478405"],
  "DELE"
  {"PUBK"
   ["2df46f6c d3b110c9 2817c572 866bd642"
    "a21e3d67 848f6cb0 71e1dc5c 71024584"],
   "MINT" 1783675642,
   "MAXT" 1783762042}},
 "INDX" 0}