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 7h

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["4a4344b8 ed36a263 cae105a2 92fe2661"
  "d964691d be07548f 43b5b523 2671f3ab"],
 "NONC"
 ["c26f364e 25effccc 80210ad6 5e92409f"
  "7cb6327c e0e0b72d 42e4ebce b64e165b"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["c924d6d8 61b01ba3 821550c3 56919208"
  "e487e2fd f7bcf239 bcd3c35d 9bc4b5f2"
  "66542d08 da111930 d932f65a 13ba200c"
  "10d0660b 5e286854 64476a50 921ae308"],
 "NONC"
 ["c26f364e 25effccc 80210ad6 5e92409f"
  "7cb6327c e0e0b72d 42e4ebce b64e165b"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 10,
  "MIDP" 1771637087,
  "VERS"
  ("0"
   "0x80000001"
   "0x80000002"
   "0x80000003"
   "0x80000004"
   "0x80000006"
   "0x80000008"
   "0x80000009"
   "0x8000000a"
   "0x8000000b"
   "0x8000000c"),
  "ROOT"
  ["5212303e 85f629d1 34b83b34 d12c627d"
   "e8242607 b5d6e278 5c1b18f0 3d4d5f2a"]},
 "CERT"
 {"SIG"
  ["5c908be5 d1c8b2ff 4f0d8e3f c8685943"
   "2fa1b388 4f078cd0 7a4e89e6 1e841257"
   "089ce0e0 d3b5504b 3ca8fbde e19974c2"
   "63010f31 926464eb f381144a b4fba402"],
  "DELE"
  {"PUBK"
   ["16ee14d5 46b6a78b 3cdd0790 085b1833"
    "0ac7a47c 96e2c015 1e62a058 3d7342aa"],
   "MINT" 1771405200,
   "MAXT" 1772096400}},
 "INDX" 0}

skew	0
expires in	5h 51m

Request Message

{"VER" "0x8000000b",
 "SRV"
 ["0d93616f 19641cbf 68f8b41a 1b659797"
  "fc9330b6 58a5042d 6be10211 94ee290c"],
 "NONC"
 ["da9a2fde e2280181 b95425bb 75f5eab6"
  "86d33df6 315b5d5a ab3f52df a548875b"],
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["aae105e9 c7bf6084 5c550cdb 5461b6a5"
  "bbd1effb 1cbc636a bbd8d387 d20a8045"
  "28042736 f8e3677c de49a6a7 622b47b5"
  "11518b16 7a102e6d 9cec69a6 5f0fe500"],
 "VER" "0x8000000b",
 "PATH" [],
 "SREP"
 {"RADI" 1,
  "MIDP" 1771637087,
  "ROOT"
  ["f7dcd7de 844cfc71 809248ff 66d1138b"
   "931ad760 75293ab0 5e075a50 d5eea70a"]},
 "CERT"
 {"SIG"
  ["6757225c 118312a1 c65419f5 eef3d8e9"
   "ac8e321d e5677cb4 1dea6073 fffedfbe"
   "c4502161 1535b1cf 241e80f3 29a4f53c"
   "f54c6c9f 540b86e5 26c5d5dc 8c9d4b0d"],
  "DELE"
  {"PUBK"
   ["01f3c288 d15b153a a7ecdaba 2f88128a"
    "99c90269 4ea80aad d800bca5 3929c5c7"],
   "MINT" 1771571802,
   "MAXT" 1771658202}},
 "INDX" 0}

skew	0
expires in	∞

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["95645ff5 c385c24e ba48d509 528a4a74"
  "e0861c0b 57f46c25 ee5c6a48 8a23246f"],
 "NONC"
 ["eb89745e eb97be00 5e2da275 8eb6e64b"
  "3c232980 37d14130 52253b70 5c8724b1"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["e6406257 c289a016 653f7ece 10d6421f"
  "5aebff59 70b3800c 59a772ca 27514c5b"
  "f360862d 74aefe41 d642bec2 c71e87d8"
  "05be1ce3 4b41b7db 5fa27122 c2d8f304"],
 "NONC"
 ["eb89745e eb97be00 5e2da275 8eb6e64b"
  "3c232980 37d14130 52253b70 5c8724b1"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 5,
  "MIDP" 1771637087,
  "VERS" ("0" "0x8000000c"),
  "ROOT"
  ["923310b1 7d68d2f3 d6552513 5446ba32"
   "6e13cc0b 898b1e61 53ed1d72 4c2e3452"]},
 "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	11mo 10d

Request Message

{"VER" "0x8000000c",
 "SRV"
 ["8c4bbf59 8f43ff13 da82bfeb 9e0652a4"
  "e372ab03 c2cae3b6 f661ea29 c8ebacc2"],
 "NONC"
 ["a450353f 3911a793 e07dfbb3 b1533e5e"
  "d18afc6f 39b7f047 b26cee7f 0abc4757"],
 "TYPE" 0,
 "ZZZZ" "0{912}"}

Response Message

{"SIG"
 ["80e2e8c4 5c791069 b1a88aac 24731c7b"
  "f67ab48d 8ff5596f ae405e96 a6c5a4d3"
  "9ffdce32 57949746 aed64a74 5e9e990c"
  "a5d257e0 f0efa0ad 6c7d14be c19e0e0d"],
 "NONC"
 ["a450353f 3911a793 e07dfbb3 b1533e5e"
  "d18afc6f 39b7f047 b26cee7f 0abc4757"],
 "TYPE" 1,
 "PATH" [],
 "SREP"
 {"VER" "0x8000000c",
  "RADI" 1,
  "MIDP" 1771637088,
  "VERS" ("0x8000000c"),
  "ROOT"
  ["f7898004 f44ddcf2 5cf6341c addbd578"
   "75596fdd 4c22def5 1e16e2b5 db4c42ca"]},
 "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	2y 5mo

Request Message

{"NONC"
 ["db8666fa 50c65717 79959fc7 4b5aee08"
  "343e2769 c84d55a9 45e8765c 6648afae"
  "ca9977fc c8ec0c44 e5f27f3b 979bf1b6"
  "b7e3214a a1e36905 f918d483 e8b7b476"],
 "PADxff" "0{944}"}

Response Message

{"SIG"
 ["9d735437 18f1939a 42cb66d8 54b4efd9"
  "0aaaeb06 60357cdd 66de22bf 94794e9b"
  "17c0e1d5 1ecb7a9d 486f4fa6 c6be086b"
  "dd3d92d0 3ef046c5 70b59fcf 1ab10e01"],
 "NONC"
 ["db8666fa 50c65717 79959fc7 4b5aee08"
  "343e2769 c84d55a9 45e8765c 6648afae"
  "ca9977fc c8ec0c44 e5f27f3b 979bf1b6"
  "b7e3214a a1e36905 f918d483 e8b7b476"],
 "PATH" [],
 "SREP"
 {"RADI" 1000000,
  "MIDP" 1771637088171464,
  "ROOT"
  ["8be262d3 548dd613 302aa5eb 6f47a8e5"
   "5ee8b978 d638ffaf 63120e63 5be325f5"
   "605024ec f2b77e6a 755d52c7 01bce4ca"
   "fa1729f5 7c6b77b7 a8d0397c be589adb"]},
 "CERT"
 {"SIG"
  ["b4d57627 27c3e7e5 399b55a8 eba862e6"
   "d5a1f609 727461a5 97216a60 83fa53ef"
   "3635e3e0 697d7199 6c0c3545 120ddb4d"
   "67fa7bf3 743b3411 a62faad4 8cef500f"],
  "DELE"
  {"PUBK"
   ["2a5da09b f7b42931 c434497b f7e58ad6"
    "45d51d5d c7e69ee9 cdbf6ea9 87f6c2b0"],
   "MINT" 1755572617392322,
   "MAXT" 1850267017392322}},
 "INDX" 0}