Pith Number

pith:FYWE4CAH

pith:2016:FYWE4CAHEOMO2LJS3MREXXLB64

not attested not anchored not stored refs pending

A spin glass approach to the directed feedback vertex set problem

Hai-Jun Zhou

arxiv:1604.00873 v1 · 2016-04-04 · physics.soc-ph · cond-mat.dis-nn · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FYWE4CAHEOMO2LJS3MREXXLB64}

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	2026-05-18T01:10:05.985385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e2c4e08072398ed2d32db224bdd61f72f84e6750e1303b6d3529bbe5b2419a1

Aliases

arxiv: 1604.00873 · arxiv_version: 1604.00873v1 · doi: 10.48550/arxiv.1604.00873 · pith_short_12: FYWE4CAHEOMO · pith_short_16: FYWE4CAHEOMO2LJS · pith_short_8: FYWE4CAH

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/FYWE4CAHEOMO2LJS3MREXXLB64 \
  | 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: 2e2c4e08072398ed2d32db224bdd61f72f84e6750e1303b6d3529bbe5b2419a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3eef72833a57af1863d54ab7e1675945941b24271eff28bce535225371c9b3c",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2016-04-04T14:40:30Z",
    "title_canon_sha256": "a1713c313d21803b8bcabc6b56b9a3be2c4da265fea9c9199c77546ec0b1cd41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00873",
    "kind": "arxiv",
    "version": 1
  }
}