Pith Number

pith:NFNAUWJS

pith:2019:NFNAUWJSYIVSVP47DTDRTPBZ6M

not attested not anchored not stored refs pending

Structure Exploiting Interior Point Methods

Drosos Kourounis, Juraj Kardo\v{s}, Olaf Schenk

arxiv:1907.05420 v1 · 2019-07-11 · math.OC · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NFNAUWJSYIVSVP47DTDRTPBZ6M}

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	2026-05-17T23:40:48.481552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

695a0a5932c22b2abf9f1cc719bc39f310dd23d64e12612c42c77f3c10336e3b

Aliases

arxiv: 1907.05420 · arxiv_version: 1907.05420v1 · doi: 10.48550/arxiv.1907.05420 · pith_short_12: NFNAUWJSYIVS · pith_short_16: NFNAUWJSYIVSVP47 · pith_short_8: NFNAUWJS

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/NFNAUWJSYIVSVP47DTDRTPBZ6M \
  | 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: 695a0a5932c22b2abf9f1cc719bc39f310dd23d64e12612c42c77f3c10336e3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04e0729dbc1fc2a898b5326bd3f934428805b346701fa4d04ef1a3ecabcd65a0",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-11T00:19:11Z",
    "title_canon_sha256": "7d113d427d3a2cd221df448e3cdae7488bb1a0bb886aea4eb4e0361ae48172ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05420",
    "kind": "arxiv",
    "version": 1
  }
}