Pith Number

pith:ZQOTBOBM

pith:2018:ZQOTBOBMSFAFQ25YFD3VWC4UYN

not attested not anchored not stored refs pending

Landmark Placement for Localization in a GPS-denied Environment

Kaarthik Sundar, Rajnikant Sharma, Shriram Srinivasan, Sivakumar Rathinam, Sohum Misra

arxiv:1802.07652 v2 · 2018-02-21 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQOTBOBMSFAFQ25YFD3VWC4UYN}

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	2026-05-18T00:10:59.943590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc1d30b82c9140586bb828f75b0b94c368b623f2ba3c06657d031cfd8813a29c

Aliases

arxiv: 1802.07652 · arxiv_version: 1802.07652v2 · doi: 10.48550/arxiv.1802.07652 · pith_short_12: ZQOTBOBMSFAF · pith_short_16: ZQOTBOBMSFAFQ25Y · pith_short_8: ZQOTBOBM

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/ZQOTBOBMSFAFQ25YFD3VWC4UYN \
  | 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: cc1d30b82c9140586bb828f75b0b94c368b623f2ba3c06657d031cfd8813a29c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c5a1bd72987464d5f6b124175b7b17ad902c3e62a5b35575eff30374f31df04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-21T16:27:20Z",
    "title_canon_sha256": "afe03e60f5750cc51bf1aaea617d70979ffc564b5632f6941f032c048a686d52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07652",
    "kind": "arxiv",
    "version": 2
  }
}