Pith Number

pith:TFQRKOB7

pith:2013:TFQRKOB7DKXCUSX2ON24EO2MRE

not attested not anchored not stored refs pending

Optimal Design of Water Distribution Networks by Discrete State Transition Algorithm

Xiaojun Zhou

arxiv:1304.7622 v2 · 2013-04-29 · math.OC · cs.IT · math.CO · math.IT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFQRKOB7DKXCUSX2ON24EO2MRE}

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	2026-05-18T01:17:53.530154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

996115383f1aae2a4afa7375c23b4c892e26f71c213a2906deb772c8cadad071

Aliases

arxiv: 1304.7622 · arxiv_version: 1304.7622v2 · doi: 10.48550/arxiv.1304.7622 · pith_short_12: TFQRKOB7DKXC · pith_short_16: TFQRKOB7DKXCUSX2 · pith_short_8: TFQRKOB7

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/TFQRKOB7DKXCUSX2ON24EO2MRE \
  | 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: 996115383f1aae2a4afa7375c23b4c892e26f71c213a2906deb772c8cadad071

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd4e37a06d8b1df0a813afa70093bfa9e8cb76bd62d562f2a201b79c37f30932",
    "cross_cats_sorted": [
      "cs.IT",
      "math.CO",
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-04-29T11:37:09Z",
    "title_canon_sha256": "8d93369e0fb612f881a0af059be949e7c1c7b839a6672bb33135b37aacfc4468"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7622",
    "kind": "arxiv",
    "version": 2
  }
}