Pith Number

pith:XINTD5KK

pith:2013:XINTD5KKLXAW3T4KUO3A6YO4JE

not attested not anchored not stored refs pending

The Beachcombers' Problem: Walking and Searching with Mobile Robots

Evangelos Kranakis, Fraser MacQuarrie, Jurek Czyzowicz, Konstantinos Georgiou, Leszek Gasieniec

arxiv:1304.7693 v1 · 2013-04-29 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XINTD5KKLXAW3T4KUO3A6YO4JE}

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	2026-05-18T03:26:53.342669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba1b31f54a5dc16dcf8aa3b60f61dc4901b1e454c99fdc1ca998ba2ab47c43ed

Aliases

arxiv: 1304.7693 · arxiv_version: 1304.7693v1 · doi: 10.48550/arxiv.1304.7693 · pith_short_12: XINTD5KKLXAW · pith_short_16: XINTD5KKLXAW3T4K · pith_short_8: XINTD5KK

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/XINTD5KKLXAW3T4KUO3A6YO4JE \
  | 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: ba1b31f54a5dc16dcf8aa3b60f61dc4901b1e454c99fdc1ca998ba2ab47c43ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc65da70939ed4cdf81c897a8ad4eaf6c92e28cc4089953fd25ed5d52668b5cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-29T15:48:52Z",
    "title_canon_sha256": "497fa667dfeb53f4c42751da24114ac2ba7e8c255fc33135aa00442fa329f82e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7693",
    "kind": "arxiv",
    "version": 1
  }
}