Pith Number

pith:4SERZDOA

pith:2010:4SERZDOADY647WNX3A3XWTCLRX

not attested not anchored not stored refs pending

Optimal competitive online ray search with an error-prone robot

Elmar Langetepe, Tom Kamphans

arxiv:1012.5259 v1 · 2010-12-23 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SERZDOADY647WNX3A3XWTCLRX}

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	2026-05-18T04:32:35.512882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4891c8dc01e3dcfd9b7d8377b4c4b8dd141b9ac8d8ecc065a45ea28141db197

Aliases

arxiv: 1012.5259 · arxiv_version: 1012.5259v1 · doi: 10.48550/arxiv.1012.5259 · pith_short_12: 4SERZDOADY64 · pith_short_16: 4SERZDOADY647WNX · pith_short_8: 4SERZDOA

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/4SERZDOADY647WNX3A3XWTCLRX \
  | 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: e4891c8dc01e3dcfd9b7d8377b4c4b8dd141b9ac8d8ecc065a45ea28141db197

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9a40a03e619d7bcb9802f82bffd1261214e432ab97dbc439e4d9a2da6b341be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2010-12-23T17:37:27Z",
    "title_canon_sha256": "9c0dc7f7f18d0d260ff583fbd30e909dd49e04d56dd2da5ef7b4f50e1d709a60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5259",
    "kind": "arxiv",
    "version": 1
  }
}