Pith Number

pith:UMGVZHZL

pith:2019:UMGVZHZL7VSODFMG2JVDQ2CXM6

not attested not anchored not stored refs pending

Runge-Kutta and Networks

Eugene Lerman, James Schmidt, Lee DeVille

arxiv:1908.11453 v1 · 2019-08-29 · math.NA · cs.NA · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMGVZHZL7VSODFMG2JVDQ2CXM6}

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	2026-07-05T00:00:36.716816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a30d5c9f2bfd64e19586d26a38685767911fa76a73c012a2836b0341b2402988

Aliases

arxiv: 1908.11453 · arxiv_version: 1908.11453v1 · doi: 10.48550/arxiv.1908.11453 · pith_short_12: UMGVZHZL7VSO · pith_short_16: UMGVZHZL7VSODFMG · pith_short_8: UMGVZHZL

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/UMGVZHZL7VSODFMG2JVDQ2CXM6 \
  | 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: a30d5c9f2bfd64e19586d26a38685767911fa76a73c012a2836b0341b2402988

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7e23a8499d552525f261dfc59154b500b3512ded808216025dcb0f6e0b5223d",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-29T21:03:52Z",
    "title_canon_sha256": "b4b5699c5881b5d4c5b08b9bac7d7255f1117f92609a9a540eee86b4684d9bc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.11453",
    "kind": "arxiv",
    "version": 1
  }
}