Pith Number

pith:IN2UQNVI

pith:2026:IN2UQNVIAFP33WOT66XRWNN5JN

not attested not anchored not stored refs pending

Software package MaRDI Open Interfaces for improved interoperability in numerical optimization

Dmitry I. Kabanov, Mario Ohlberger, Stephan Rave

arxiv:2606.20490 v1 · 2026-06-18 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IN2UQNVIAFP33WOT66XRWNN5JN}

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	2026-06-19T16:13:13.614507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43754836a8015fbdd9d3f7af1b35bd4b59315287136248473209a9f3047658e6

Aliases

arxiv: 2606.20490 · arxiv_version: 2606.20490v1 · doi: 10.48550/arxiv.2606.20490 · pith_short_12: IN2UQNVIAFP3 · pith_short_16: IN2UQNVIAFP33WOT · pith_short_8: IN2UQNVI

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/IN2UQNVIAFP33WOT66XRWNN5JN \
  | 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: 43754836a8015fbdd9d3f7af1b35bd4b59315287136248473209a9f3047658e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "910794ab0c35ba9fe5246e4d4441fe97c97bbcb86a52ce3a48a74cf4091d5bd2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2026-06-18T17:07:33Z",
    "title_canon_sha256": "52d8a8f36ca2eade27de24621bfa62ffb7b8dfeb91e907b8553a790a413058ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20490",
    "kind": "arxiv",
    "version": 1
  }
}