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 9h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["484e69b1 7675e6cf 9c55aec5 c8a2fa20"
  "563f8dec 33b4d83e 0873eb7a e940b43f"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["4c6ad293 bb48681f 5f10aa41 6421e9c4"
  "f4bb342b 44532eae 82473d17 66ea19d1"
  "fc8a9213 a266258b 953884d5 c1bd048b"
  "2f3b70d8 87c5ec0b c7e88761 be133d0a"],
 "NONC"
 ["484e69b1 7675e6cf 9c55aec5 c8a2fa20"
  "563f8dec 33b4d83e 0873eb7a e940b43f"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1791585903,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["888cb7d8 866f0cfd 592f6713 325dbfcc"
   "828cb486 9ba27e07 025821f8 146196f8"]},
 "CERT"
 {"SIG"
  ["5274ebd4 f9c948ba 82359a57 0c576774"
   "3d4d7fd8 cdd373b5 4cc5bf8d 9c0d299e"
   "47fac0c1 a03f7173 ec7eeeb6 31740b72"
   "8d78756f 8374e61a e6407adc cfe7490f"],
  "DELE"
  {"PUBK"
   ["0d87e6bf d91dfcae 86cd64f2 6d733009"
    "304fe2f3 3bc72061 8d29c8a9 fb9968c8"],
   "MINT" 1791360000,
   "MAXT" 1792051200}},
 "INDX" 0}

skew	0
expires in	7h 44m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["c22e1938 b5350c18 fd1cb414 d50fab1d"
  "98e53f39 3c5ecff0 d0bc0d9a 3359cbfe"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["8bd20d46 15d068a6 b0b2aec6 308c2946"
  "f4414a48 fcf863ae 630080d3 1218ff3e"
  "3a335185 2aced6ed d747876a 2f31c7aa"
  "6cecab2c 210cf9ca 67b4b84d 65017308"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1791585903,
  "ROOT"
  ["d53c2d5c 87c007b8 dde5d08a 56267214"
   "4d557257 b0d59f39 91bd69ef e2d66f1b"]},
 "CERT"
 {"SIG"
  ["e1fe4ed4 559e62d0 98797473 8a20b9f8"
   "c368b38a bff068aa 07ab17d0 619db203"
   "58827c27 f6ee4f58 e211d29e e3a23e47"
   "2cc39c15 a108c485 d5531717 cede1c0e"],
  "DELE"
  {"PUBK"
   ["55a49481 7a7763d7 e144cd86 68d870bd"
    "b8d769a6 1828e873 ea3506b9 d0eab26f"],
   "MINT" 1791527359,
   "MAXT" 1791613759}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["80274c57 712757bf f8a514af 3a01e93d"
  "5909cb9c 628cce06 a4f3269b 0c0d0409"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["14dd22e7 090081d4 3f8ef9e8 7c7813df"
  "cf3aba7d d3d001ad 60c7e126 dd180480"
  "b39a4979 317cc58f 3de5d46f b3e9f650"
  "b0bd67af a2be28b3 843ea23a 0638ed02"],
 "NONC"
 ["80274c57 712757bf f8a514af 3a01e93d"
  "5909cb9c 628cce06 a4f3269b 0c0d0409"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1791585903,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["32cc19f1 d580e2eb c7171570 cf45ac8e"
   "d14b2553 bef53653 ee48514a 5aa9ddaf"]},
 "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	0
expires in	3mo 22d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["d7037dfc ca3fdf19 765f6574 e121de6f"
  "e5a0197a cd887ace 4f68a79b d4d08115"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["c3ca79f4 099f7cf9 89721de9 8716308b"
  "7f58cb82 10a0c9be 199a80fe 597049a0"
  "0cc40fc3 c7554b30 408a1004 ca9d7495"
  "025a6a1d a1f4dd7b 749e5758 d704cc0c"],
 "NONC"
 ["d7037dfc ca3fdf19 765f6574 e121de6f"
  "e5a0197a cd887ace 4f68a79b d4d08115"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1791585904,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["80e6f92b 0c5342f0 2539ab09 a4df7891"
   "efe17e14 3be23554 e6bddb1b f2113100"]},
 "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}