Pith Number

pith:DIDRSQBH

pith:2024:DIDRSQBHRY2ZY65S2IF64JOJMD

not attested not anchored not stored refs pending

A QPTAS for Facility Location on Unit Disk graphs

Hao Sun, Mohammad R. Salavatipour, Mohsen Rezapour, Zachary Friggstad

arxiv:2405.08931 v1 · 2024-05-14 · 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{DIDRSQBHRY2ZY65S2IF64JOJMD}

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	2026-07-05T08:19:10.992062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a071940278e359c7bb2d20bee25c960fcf3849b6d0a802dd009d0979b333429

Aliases

arxiv: 2405.08931 · arxiv_version: 2405.08931v1 · doi: 10.48550/arxiv.2405.08931 · pith_short_12: DIDRSQBHRY2Z · pith_short_16: DIDRSQBHRY2ZY65S · pith_short_8: DIDRSQBH

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/DIDRSQBHRY2ZY65S2IF64JOJMD \
  | 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: 1a071940278e359c7bb2d20bee25c960fcf3849b6d0a802dd009d0979b333429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d75aab43af39e9a9ffc56db1a4e42b427387826da8250e546776c2fd051f9fe7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2024-05-14T19:50:08Z",
    "title_canon_sha256": "945b77737932a7785d1b505ff2bb2d34c774fe5019b5b53eb5039ef6f7498c5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.08931",
    "kind": "arxiv",
    "version": 1
  }
}