Pith Number

pith:OJ2V45OR

pith:2025:OJ2V45ORGFHRXLFOTRC3I7VMU7

not attested not anchored not stored refs pending

Constant-Approximate and Constant-Strategyproof Two-Facility Location

C. Gregory Plaxton, Elijah Journey Fullerton, Zeyuan Hu

arxiv:2507.04485 v3 · 2025-07-06 · 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{OJ2V45ORGFHRXLFOTRC3I7VMU7}

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	2026-07-05T11:53:48.409415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72755e75d1314f1bacae9c45b47eaca7c64724231f79bb3c196cb9c8d1da1989

Aliases

arxiv: 2507.04485 · arxiv_version: 2507.04485v3 · doi: 10.48550/arxiv.2507.04485 · pith_short_12: OJ2V45ORGFHR · pith_short_16: OJ2V45ORGFHRXLFO · pith_short_8: OJ2V45OR

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/OJ2V45ORGFHRXLFOTRC3I7VMU7 \
  | 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: 72755e75d1314f1bacae9c45b47eaca7c64724231f79bb3c196cb9c8d1da1989

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed7b9e5b343c10cfada3dec12f0a1d0b1894cfe18ceb26689ad764df594f9460",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2025-07-06T17:51:52Z",
    "title_canon_sha256": "a4d1ce032e0e9076d1228f40322f12485c5d04ffdc818463c40eb71a303a18e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.04485",
    "kind": "arxiv",
    "version": 3
  }
}