Pith Number

pith:JRQWVU7I

pith:2015:JRQWVU7IRQGUOX2YZQMBZBLT72

not attested not anchored not stored refs pending

A Heuristic Reference Recursive Recipe for the Menacing Problem of Adaptively Tuning the Kalman Filter Statistics. Part-1. Formulation and Simulation Studies

M. R. Ananthasayanam, Naren Naik, R. M. O. Gemson, Shyam Mohan M

arxiv:1505.07201 v1 · 2015-05-27 · 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{JRQWVU7IRQGUOX2YZQMBZBLT72}

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	2026-05-18T02:02:07.179677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c616ad3e88c0d475f58cc181c8573fe88c4e59e52562358b39b397594664492

Aliases

arxiv: 1505.07201 · arxiv_version: 1505.07201v1 · doi: 10.48550/arxiv.1505.07201 · pith_short_12: JRQWVU7IRQGU · pith_short_16: JRQWVU7IRQGUOX2Y · pith_short_8: JRQWVU7I

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/JRQWVU7IRQGUOX2YZQMBZBLT72 \
  | 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: 4c616ad3e88c0d475f58cc181c8573fe88c4e59e52562358b39b397594664492

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55385f8b97ac73524fd434effe07978ab157d57a63b137df6af029334c2bafb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-05-27T06:31:15Z",
    "title_canon_sha256": "696778662f026ee5d5dbb33fa4b363d2ace1856211123c3054abfc1180496888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07201",
    "kind": "arxiv",
    "version": 1
  }
}