Pith Number

pith:IS4KJY3L

pith:2019:IS4KJY3L73UF5DIPZBBKXABYUM

not attested not anchored not stored refs pending

A mixed-integer linear programming approach for soft graph clustering

John Yearwood, Vicky Mak-Hau

arxiv:1906.04860 v1 · 2019-06-11 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IS4KJY3L73UF5DIPZBBKXABYUM}

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	2026-05-17T23:43:30.302240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44b8a4e36bfee85e8d0fc842ab8038a335204988c8c40318b2d6412d8650a219

Aliases

arxiv: 1906.04860 · arxiv_version: 1906.04860v1 · doi: 10.48550/arxiv.1906.04860 · pith_short_12: IS4KJY3L73UF · pith_short_16: IS4KJY3L73UF5DIP · pith_short_8: IS4KJY3L

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/IS4KJY3L73UF5DIPZBBKXABYUM \
  | 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: 44b8a4e36bfee85e8d0fc842ab8038a335204988c8c40318b2d6412d8650a219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "659483fc4aeaefc620e03d04187a5e31d0f621bf60fc75d2f0a840248eb6bff1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-06-11T23:27:09Z",
    "title_canon_sha256": "f345ad36c12027cdf1159e0f0b11ccb5b66ce7259d9577b66bc44430928e3daf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04860",
    "kind": "arxiv",
    "version": 1
  }
}