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	2d 11h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["6d7a733f 2792beef 2cd2dbaa ccbf096d"
  "3ca4a9b2 8cbddad4 26ac0a4a 584c878b"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["0e36abea 68481654 c7369a91 6e396e26"
  "64817a0a 52f6cd7a bde4344d c3595f7b"
  "b373fcb3 02358fca 7ab33aa9 768706ec"
  "3c6e5b90 007bce81 a33fb292 715cc701"],
 "NONC"
 ["6d7a733f 2792beef 2cd2dbaa ccbf096d"
  "3ca4a9b2 8cbddad4 26ac0a4a 584c878b"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1779740584,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["4d13f6be d3ca28d5 8246bdaa 78820f8a"
   "9ec596fa 05c34536 fa27922f 3180577e"]},
 "CERT"
 {"SIG"
  ["6cf4b713 9cc19852 96cfd465 4549b97a"
   "9763f204 6b859399 8ab1ee81 fb62c77e"
   "f952aeb6 8b9a0f11 63a1c66a adc78c1a"
   "715bdf06 8d25e8cb 52c9e6db 4d84f80b"],
  "DELE"
  {"PUBK"
   ["5ff53447 a5278e9d 4ade7852 482e1b6f"
    "639a7f27 afaefb14 7cefe8bf f8767d45"],
   "MINT" 1779264000,
   "MAXT" 1779955200}},
 "INDX" 0}

skew	0
expires in	13h 44m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["03684465 00423727 8734f92f 0b266ba2"
  "15b575ef 9744f96c 7fbfd0a6 2ae4596f"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["da7e0635 5b3c12d4 c35fc055 f5924b30"
  "c12cc0e1 d3f400f1 0faff7dd dd0fa1a1"
  "172c7a72 0d344f13 7369b2c0 fbed630b"
  "0740ba44 6b0aa349 a5e64fe1 97a91102"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1779740584,
  "ROOT"
  ["57cfbdee 2df0a2cd 7686c88d fb9c277b"
   "6233a25c aa8b2460 fef9e20c 819b34ed"]},
 "CERT"
 {"SIG"
  ["24f48143 3d2d81dc 6db7199c b82104f0"
   "590e91a1 ce2803d5 2402e849 496b74da"
   "3c122ca8 fbe15810 8f9ade4c 5b35beba"
   "73ae146d d215173b 3cc2021d 86b74f0d"],
  "DELE"
  {"PUBK"
   ["beddd075 10cb2743 caff345f 1cc8437d"
    "54493147 dc77259c 4f8fd679 5566bef8"],
   "MINT" 1779703647,
   "MAXT" 1779790047}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["b9a982a0 bb0f784c 99cc94f0 326baf08"
  "d1243666 2744615f 8fd92f5a f31938c1"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["eef6570d e1d38b33 d258efed fdafa876"
  "13afb9d4 8b9ee1a3 a4925aa1 4ebb78e1"
  "ef016143 bd9ca678 c9d12f1f f2442d61"
  "eaa99fc2 0d77a572 9972ab78 d507ae0c"],
 "NONC"
 ["b9a982a0 bb0f784c 99cc94f0 326baf08"
  "d1243666 2744615f 8fd92f5a f31938c1"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1779740584,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["f03461ed 3f223c31 73d5cb60 5ac11484"
   "64860aa3 6ce1fdd2 a65498f5 c4dc0a27"]},
 "CERT"
 {"SIG"
  ["c0be52c3 79a57dbd 026b9c23 13748323"
   "35296c4f 42a2b0ec 9319ee0c 18e591dd"
   "5ba1b635 8799b899 989a1d3e 9e314c7e"
   "9abd8b52 e95cef59 a695f41c 66c4f005"],
  "DELE"
  {"PUBK"
   ["92a0b40f d0dc4852 061f075d 305ded4d"
    "9ccc3001 f41f038d e1071a40 4fcf3d60"],
   "MINT" 0,
   "MAXT" 18446744073709551615}},
 "INDX" 0}

skew	0
expires in	8mo 7d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["b452e945 f73c568f e0dd10c6 e5ffd315"
  "2fda57c3 272d723b ef0360cc c17e9562"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["20da08ca 3e90d4e9 902e26dc 42b4b0dd"
  "5393cb2d 09bf3a97 6059b901 3274dc63"
  "af732eb2 258838c6 fad43474 31041e92"
  "6076bac9 ad5c5575 cd9720ab 50c56800"],
 "NONC"
 ["b452e945 f73c568f e0dd10c6 e5ffd315"
  "2fda57c3 272d723b ef0360cc c17e9562"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1779740584,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["1fe356a1 7ca6bd80 d1b3663d e053f0e5"
   "da600075 eb7d7ef8 242f3c76 1a2d5446"]},
 "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}

Error: No UDP response received

{:server
 {:name "time.txryan.com",
  :version "IETF-Roughtime",
  :version-no 2147483660,
  :supported-versions nil,
  :msg-size 1024,
  :public-key-type "ed25519",
  :public-key "iBVjxg/1j7y1+kQUTBYdTabxCppesU/07D4PMDJk2WA=",
  :addresses [{:protocol "udp", :address "127.0.0.1:2015"}]},
 :attempts 3,
 :timeout-ms 1000}