Pith Number

pith:VHFUYNCI

pith:2019:VHFUYNCIMBWGSNHOT4A4LI56IV

not attested not anchored not stored refs pending

Secure Client and Server Geolocation Over the Internet

AbdelRahman Abdou, Paul C. van Oorschot

arxiv:1906.11288 v1 · 2019-06-26 · cs.CR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHFUYNCIMBWGSNHOT4A4LI56IV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:42:07.587290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9cb4c3448606c6934ee9f01c5a3be454195bc9a1928b44765b6f4536fb9724d

Aliases

arxiv: 1906.11288 · arxiv_version: 1906.11288v1 · doi: 10.48550/arxiv.1906.11288 · pith_short_12: VHFUYNCIMBWG · pith_short_16: VHFUYNCIMBWGSNHO · pith_short_8: VHFUYNCI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VHFUYNCIMBWGSNHOT4A4LI56IV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a9cb4c3448606c6934ee9f01c5a3be454195bc9a1928b44765b6f4536fb9724d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e904f930d75989c4acb31ea3a9c46d1adc4697b5c4634d7830592d675fed96d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-06-26T18:27:28Z",
    "title_canon_sha256": "01c5e3a8e77ba6e672025ba90cb44b13313a614cfbb4ff6a52fd984f59efc561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11288",
    "kind": "arxiv",
    "version": 1
  }
}