Pith Number

pith:BTWLW7VI

pith:2019:BTWLW7VIWAPGG3BAOUHU53U6T2

not attested not anchored not stored refs pending

Analysis of a localised nonlinear Ensemble Kalman Bucy Filter with complete and accurate observations

Jana de Wiljes, Xin T. Tong

arxiv:1908.10580 v3 · 2019-08-28 · 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{BTWLW7VIWAPGG3BAOUHU53U6T2}

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	2026-07-05T01:30:21.448486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cecbb7ea8b01e636c20750f4eee9e9ea521248a6a8406c52f18638b2697491c

Aliases

arxiv: 1908.10580 · arxiv_version: 1908.10580v3 · doi: 10.48550/arxiv.1908.10580 · pith_short_12: BTWLW7VIWAPG · pith_short_16: BTWLW7VIWAPGG3BA · pith_short_8: BTWLW7VI

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/BTWLW7VIWAPGG3BAOUHU53U6T2 \
  | 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: 0cecbb7ea8b01e636c20750f4eee9e9ea521248a6a8406c52f18638b2697491c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e47795318a4dd4d2781b2504576c6db8346d71f135fd1a5ccdf4291b8f823af5",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-28T07:31:07Z",
    "title_canon_sha256": "cea3a630c1dc483eaa44bf28a4f2910ef85304232ea00b6d712f46a8b342aa44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10580",
    "kind": "arxiv",
    "version": 3
  }
}