Pith Number

pith:267PFPYQ

pith:2009:267PFPYQPBLDDNUDK4PTKET6PT

not attested not anchored not stored refs pending

The Anderson-Weber strategy is not optimal for symmetric rendezvous search on K4

Richard Weber

arxiv:0912.0670 v1 · 2009-12-03 · math.OC · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{267PFPYQPBLDDNUDK4PTKET6PT}

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	2026-07-04T17:17:03.083600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7bef2bf10785631b683571f35127e7cf98f21e6bd477416f69b0b3988698b76

Aliases

arxiv: 0912.0670 · arxiv_version: 0912.0670v1 · doi: 10.48550/arxiv.0912.0670 · pith_short_12: 267PFPYQPBLD · pith_short_16: 267PFPYQPBLDDNUD · pith_short_8: 267PFPYQ

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/267PFPYQPBLDDNUDK4PTKET6PT \
  | 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: d7bef2bf10785631b683571f35127e7cf98f21e6bd477416f69b0b3988698b76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5867551faa2b3a4f8255eb28885fcee9dc6ccb23d82135d32ef43322d3db98b3",
    "cross_cats_sorted": [
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2009-12-03T15:03:32Z",
    "title_canon_sha256": "b64217bee8e9fb72f2efa055adcbe238cb924a71db5f968e8213b9cf9b8b8fd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0670",
    "kind": "arxiv",
    "version": 1
  }
}