Pith Number

pith:26AM4PWS

pith:2025:26AM4PWSJLZIVCDS4DQVCOLGTI

not attested not anchored not stored refs pending

Parameter Estimation in ODE Models with Certified Polynomial System Solving

Alexander Demin, Alexey Ovchinnikov, Fabrice Rouillier

arxiv:2504.17268 v1 · 2025-04-24 · cs.SC · cs.MS · cs.SY · eess.SY · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26AM4PWSJLZIVCDS4DQVCOLGTI}

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	2026-07-05T10:53:25.576818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d780ce3ed24af28a8872e0e15139669a369baf35b26f00896225e0e1e6bb867e

Aliases

arxiv: 2504.17268 · arxiv_version: 2504.17268v1 · doi: 10.48550/arxiv.2504.17268 · pith_short_12: 26AM4PWSJLZI · pith_short_16: 26AM4PWSJLZIVCDS · pith_short_8: 26AM4PWS

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/26AM4PWSJLZIVCDS4DQVCOLGTI \
  | 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: d780ce3ed24af28a8872e0e15139669a369baf35b26f00896225e0e1e6bb867e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5aeba6da7aed12ab0b7ffed7c4d80aa76fdfe94d2f7640043c7c29f527c6f2a",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.SY",
      "eess.SY",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2025-04-24T05:53:31Z",
    "title_canon_sha256": "e1d7d598805824e003dbe6bb567e5f5dac560627f24ef67067a8d289ac5a41db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17268",
    "kind": "arxiv",
    "version": 1
  }
}