Pith Number

pith:IG3XTUCH

pith:2025:IG3XTUCHNGAPWGJU5CCYOSXLVV

not attested not anchored not stored refs pending

Data assimilation using a global Girsanov nudged particle filter

Colin J. Cotter, Dan Crisan, Joshua Hope-Collins, Maneesh Kumar Singh

arxiv:2507.17685 v1 · 2025-07-23 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IG3XTUCHNGAPWGJU5CCYOSXLVV}

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.

Cited by

1 paper in Pith

Guided filtering and smoothing for infinite-dimensional diffusions

Receipt and verification

First computed	2026-07-05T11:42:11.698249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41b779d0476980fb1934e885874aebad40e9a48d984ec8be38bd95d9c9c5da8c

Aliases

arxiv: 2507.17685 · arxiv_version: 2507.17685v1 · doi: 10.48550/arxiv.2507.17685 · pith_short_12: IG3XTUCHNGAP · pith_short_16: IG3XTUCHNGAPWGJU · pith_short_8: IG3XTUCH

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/IG3XTUCHNGAPWGJU5CCYOSXLVV \
  | 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: 41b779d0476980fb1934e885874aebad40e9a48d984ec8be38bd95d9c9c5da8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7764db08ed20ef35d203adaaea93f87187125b4e23988bf15dd6f2773db333fe",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-07-23T16:49:30Z",
    "title_canon_sha256": "81798a3575ea7524a58e449be43269e28d97f4c88b9b076198fa76384b6e3e03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17685",
    "kind": "arxiv",
    "version": 1
  }
}