Pith Number

pith:3PBTVHLN

pith:2018:3PBTVHLNBFML2RIXGUUV77WEFC

not attested not anchored not stored refs pending

Hapi: A Robust Pseudo-3D Calibration-Free WiFi-based Indoor Localization System

Ashok Agrawala, Heba Aly

arxiv:1812.03083 v1 · 2018-11-25 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3PBTVHLNBFML2RIXGUUV77WEFC}

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

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	2026-05-17T23:58:51.006164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbc33a9d6d0958bd451735295ffec428bff62a452e2854de7e3103f065a565ee

Aliases

arxiv: 1812.03083 · arxiv_version: 1812.03083v1 · doi: 10.48550/arxiv.1812.03083 · pith_short_12: 3PBTVHLNBFML · pith_short_16: 3PBTVHLNBFML2RIX · pith_short_8: 3PBTVHLN

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/3PBTVHLNBFML2RIXGUUV77WEFC \
  | 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: dbc33a9d6d0958bd451735295ffec428bff62a452e2854de7e3103f065a565ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f012b89150d530a4dc4458ce4f8f9ee94a474b046acd72300495c5ca98dd061d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-11-25T23:46:08Z",
    "title_canon_sha256": "fc1e27ebc921b224696b5d8181db753038d127c31e3845316fd3580148030c53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03083",
    "kind": "arxiv",
    "version": 1
  }
}