Pith Number

pith:WHV4IWHO

pith:2025:WHV4IWHORK2TV7VPHK2MTSMTKD

not attested not anchored not stored refs pending

Sparsity-Aware Extended Kalman Filter for Tracking Dynamic Graphs

Lital Dabush, Nir Shlezinger, Tirza Routtenberg

arxiv:2507.09999 v1 · 2025-07-14 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WHV4IWHORK2TV7VPHK2MTSMTKD}

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	2026-07-05T11:36:43.498926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1ebc458ee8ab53afeaf3ab4c9c99350ebf351041e1be889c7f8ba87fa83f1c2

Aliases

arxiv: 2507.09999 · arxiv_version: 2507.09999v1 · doi: 10.48550/arxiv.2507.09999 · pith_short_12: WHV4IWHORK2T · pith_short_16: WHV4IWHORK2TV7VP · pith_short_8: WHV4IWHO

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/WHV4IWHORK2TV7VPHK2MTSMTKD \
  | 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: b1ebc458ee8ab53afeaf3ab4c9c99350ebf351041e1be889c7f8ba87fa83f1c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246756c62bd2713d7509bd04ae2ed50f102b1719b2fd3db9e128295f0d0d198e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-07-14T07:33:45Z",
    "title_canon_sha256": "aa6b95f7acab0f41213737fcda626d709aed0c7fa6e4bc22fbc74ad6fa7977e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.09999",
    "kind": "arxiv",
    "version": 1
  }
}