Pith Number

pith:BR65QGGF

pith:2013:BR65QGGFBMHFUOLIXWSRPRRFMP

not attested not anchored not stored refs pending

Bias of the SIR filter in estimation of the state transition noise

Tiancheng Li

arxiv:1308.2426 v1 · 2013-08-11 · cs.SY · 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{BR65QGGFBMHFUOLIXWSRPRRFMP}

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	2026-05-18T00:39:18.749732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c7dd818c50b0e5a3968bda517c62563ccce8774fa269b9a20ff860b0ca8a4ce

Aliases

arxiv: 1308.2426 · arxiv_version: 1308.2426v1 · doi: 10.48550/arxiv.1308.2426 · pith_short_12: BR65QGGFBMHF · pith_short_16: BR65QGGFBMHFUOLI · pith_short_8: BR65QGGF

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/BR65QGGFBMHFUOLIXWSRPRRFMP \
  | 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: 0c7dd818c50b0e5a3968bda517c62563ccce8774fa269b9a20ff860b0ca8a4ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f816996e2ab4c094f5fe9bc9a28c2bc317bde68ae9c0f38566280d22e5395ac0",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2013-08-11T20:15:49Z",
    "title_canon_sha256": "81052b37a507deb4c689b2380a3d9057a214d2d5454863a4530d04891b04f733"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2426",
    "kind": "arxiv",
    "version": 1
  }
}