Pith Number

pith:VQ3OEFB5

pith:2017:VQ3OEFB5BNOONF7QFGU5FTPZHZ

not attested not anchored not stored refs pending

Ordered p-median problems with neighborhoods

V\'ictor Blanco

arxiv:1703.07448 v2 · 2017-03-21 · math.OC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQ3OEFB5BNOONF7QFGU5FTPZHZ}

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	2026-05-18T00:32:20.732491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac36e2143d0b5ce697f029a9d2cdf93e42c1220fef7b31dfbda14e6ff11f829c

Aliases

arxiv: 1703.07448 · arxiv_version: 1703.07448v2 · doi: 10.48550/arxiv.1703.07448 · pith_short_12: VQ3OEFB5BNOO · pith_short_16: VQ3OEFB5BNOONF7Q · pith_short_8: VQ3OEFB5

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/VQ3OEFB5BNOONF7QFGU5FTPZHZ \
  | 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: ac36e2143d0b5ce697f029a9d2cdf93e42c1220fef7b31dfbda14e6ff11f829c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0165500f7d1abe7c0d7164ce7464b51ed9af429e600548c8e2091ea76414312b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-21T22:03:14Z",
    "title_canon_sha256": "f7e8113651ddd79ad1ee8f76413b50a39d8f31dd094cf368f0e001d4c7adfc22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07448",
    "kind": "arxiv",
    "version": 2
  }
}