Pith Number

pith:I4XL2LDN

pith:2026:I4XL2LDNDOMEA4FLRLSU4LDHAF

not attested not anchored not stored refs pending

A Regularized Ensemble Kalman Filter for Stochastic Phase Field Models of Brittle Fracture

Knut Andreas Meyer, Lucas Hermann, Ralf J\"anicke, Ulrich R\"omer

arxiv:2603.09728 v1 · 2026-03-10 · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4XL2LDNDOMEA4FLRLSU4LDHAF}

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	2026-07-10T01:19:42.769787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

472ebd2c6d1b984070ab8ae54e2c670142bc58cfddf1c791d4b4b3f19a753480

Aliases

arxiv: 2603.09728 · arxiv_version: 2603.09728v1 · doi: 10.48550/arxiv.2603.09728 · pith_short_12: I4XL2LDNDOME · pith_short_16: I4XL2LDNDOMEA4FL · pith_short_8: I4XL2LDN

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/I4XL2LDNDOMEA4FLRLSU4LDHAF \
  | 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: 472ebd2c6d1b984070ab8ae54e2c670142bc58cfddf1c791d4b4b3f19a753480

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccf90b397ff6234f0e5eb51553ee81780f250bf0240d459436072442ce1446e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2026-03-10T14:33:11Z",
    "title_canon_sha256": "8b36c0176bf2ab71d06b834f7d5aec35bdaf6569598b231c134a08a07ba8634d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.09728",
    "kind": "arxiv",
    "version": 1
  }
}