Pith Number

pith:VNNQVS73

pith:2012:VNNQVS73A3MBMNG633J6QGQCTK

not attested not anchored not stored refs pending

Bridging the ensemble Kalman and particle filter

Hans R. K\"unsch, Marco Frei

arxiv:1208.0463 v2 · 2012-08-02 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNNQVS73A3MBMNG633J6QGQCTK}

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	2026-05-18T03:05:55.025890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab5b0acbfb06d81634deded3e81a029aa4117beb25099e48b3d60023134cbf9a

Aliases

arxiv: 1208.0463 · arxiv_version: 1208.0463v2 · doi: 10.48550/arxiv.1208.0463 · pith_short_12: VNNQVS73A3MB · pith_short_16: VNNQVS73A3MBMNG6 · pith_short_8: VNNQVS73

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/VNNQVS73A3MBMNG633J6QGQCTK \
  | 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: ab5b0acbfb06d81634deded3e81a029aa4117beb25099e48b3d60023134cbf9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d2cb7eb891698df98b02de1868e05c114cc2c8aead661ae9fd7c8ff2a798bb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-08-02T12:16:43Z",
    "title_canon_sha256": "bbe50d57b5eb9e2a9c908fa054c0da905e9ad3d1bf90394881883099f6db6202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0463",
    "kind": "arxiv",
    "version": 2
  }
}