Pith Number

pith:W444LI5Z

pith:2019:W444LI5Z33C4U4TM5CR2VPQQV2

not attested not anchored not stored refs pending

Deep urban unaided precise Global Navigation Satellite System vehicle positioning

Lakshay Narula, Matthew J. Murrian, Todd E. Humphreys

arxiv:1906.09539 v2 · 2019-06-23 · eess.SP · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W444LI5Z33C4U4TM5CR2VPQQV2}

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	2026-07-05T01:10:11.491002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b739c5a3b9dec5ca726ce8a3aabe10ae8d5275d08d2daaa0c90fca98fa16341c

Aliases

arxiv: 1906.09539 · arxiv_version: 1906.09539v2 · doi: 10.48550/arxiv.1906.09539 · pith_short_12: W444LI5Z33C4 · pith_short_16: W444LI5Z33C4U4TM · pith_short_8: W444LI5Z

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/W444LI5Z33C4U4TM5CR2VPQQV2 \
  | 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: b739c5a3b9dec5ca726ce8a3aabe10ae8d5275d08d2daaa0c90fca98fa16341c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f5b9c92c3477134644c25d9324138f2c67fedf58b0e66279e51f567f6d68c01",
    "cross_cats_sorted": [
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-06-23T02:38:36Z",
    "title_canon_sha256": "d5075f07d0d45cc8d7d9003d5302dc9242cf17e0135953deec81c44d1a6d0027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09539",
    "kind": "arxiv",
    "version": 2
  }
}