Pith Number

pith:642TU4MG

pith:2011:642TU4MGEUOLT3626Q5LR6DCGI

not attested not anchored not stored refs pending

CellSense: An Accurate Energy-Efficient GSM Positioning System

Mohamed Ibrahim, Moustafa Youssef

arxiv:1110.3425 v1 · 2011-10-15 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{642TU4MGEUOLT3626Q5LR6DCGI}

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	2026-05-18T04:10:55.811236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7353a7186251cb9efdaf43ab8f862322bfea037ac8b2c55c53616fd790ba38c

Aliases

arxiv: 1110.3425 · arxiv_version: 1110.3425v1 · doi: 10.48550/arxiv.1110.3425 · pith_short_12: 642TU4MGEUOL · pith_short_16: 642TU4MGEUOLT362 · pith_short_8: 642TU4MG

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/642TU4MGEUOLT3626Q5LR6DCGI \
  | 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: f7353a7186251cb9efdaf43ab8f862322bfea037ac8b2c55c53616fd790ba38c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28590979cbe7728cc2255e81319dec2e26515b0326c0e11abad7548be8fb36ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2011-10-15T16:27:20Z",
    "title_canon_sha256": "62f8b85d72c81af492d95c5f44982245fe65257f9c20d30a25eca200671c328e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3425",
    "kind": "arxiv",
    "version": 1
  }
}