Pith Number

pith:H5B4A4OZ

pith:2011:H5B4A4OZLPTVCCTPCYN3R7CJ4M

not attested not anchored not stored refs pending

The Gathering Problem for Two Oblivious Robots with Unreliable Compasses

Koichi Wada, Masafumi Yamashita, Nobuhiro Inuzuka, Samia Souissi, Taisuke Izumi, Xavier D\'efago, Yoshiaki Katayama

arxiv:1111.1492 v1 · 2011-11-07 · cs.DC · cs.DS · 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{H5B4A4OZLPTVCCTPCYN3R7CJ4M}

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	2026-05-18T04:09:25.991801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f43c071d95be7510a6f161bb8fc49e315cd86a3a3590a2e9fa066a7fe8621a7

Aliases

arxiv: 1111.1492 · arxiv_version: 1111.1492v1 · doi: 10.48550/arxiv.1111.1492 · pith_short_12: H5B4A4OZLPTV · pith_short_16: H5B4A4OZLPTVCCTP · pith_short_8: H5B4A4OZ

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/H5B4A4OZLPTVCCTPCYN3R7CJ4M \
  | 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: 3f43c071d95be7510a6f161bb8fc49e315cd86a3a3590a2e9fa066a7fe8621a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc39138265342a151552dec3b8c6fa1a6674ed68294fe92ebdd33f61c92ea824",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2011-11-07T06:00:11Z",
    "title_canon_sha256": "33d64f89b9ef50ac07e9ead11ac0f776793a06c0d871da165426bd23906a4a11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1492",
    "kind": "arxiv",
    "version": 1
  }
}