Pith Number

pith:UXRKLTO2

pith:2018:UXRKLTO2FJ5OLNVMZOWUXMEUDM

not attested not anchored not stored refs pending

RealCertify: a Maple package for certifying non-negativity

Mohab Safey El Din, Victor Magron

arxiv:1805.02201 v1 · 2018-05-06 · cs.SC · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UXRKLTO2FJ5OLNVMZOWUXMEUDM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:16:40.641676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5e2a5cdda2a7ae5b6accbad4bb0941b35bfdeff99cfc1fae1385639716927e0

Aliases

arxiv: 1805.02201 · arxiv_version: 1805.02201v1 · doi: 10.48550/arxiv.1805.02201 · pith_short_12: UXRKLTO2FJ5O · pith_short_16: UXRKLTO2FJ5OLNVM · pith_short_8: UXRKLTO2

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/UXRKLTO2FJ5OLNVMZOWUXMEUDM \
  | 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: a5e2a5cdda2a7ae5b6accbad4bb0941b35bfdeff99cfc1fae1385639716927e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d309e724dbbd82bb474293629213a2096bfd52061c3c856984573db3b71478d6",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2018-05-06T12:31:55Z",
    "title_canon_sha256": "104e619a6309de30bca95444e86f76858201b0bc1e3570c5d80126e73f07b02b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02201",
    "kind": "arxiv",
    "version": 1
  }
}