Pith Number

pith:QEG5X7MS

pith:2015:QEG5X7MSTBTDWGIICKXVMGOVLO

not attested not anchored not stored refs pending

Information Geometric Nonlinear Filtering

Nigel J. Newton

arxiv:1502.04638 v1 · 2015-02-16 · math.PR · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEG5X7MSTBTDWGIICKXVMGOVLO}

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	2026-05-18T01:36:18.368544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

810ddbfd9298663b190812af5619d55b9f0c05a3481782203df171f15036feaa

Aliases

arxiv: 1502.04638 · arxiv_version: 1502.04638v1 · doi: 10.48550/arxiv.1502.04638 · pith_short_12: QEG5X7MSTBTD · pith_short_16: QEG5X7MSTBTDWGII · pith_short_8: QEG5X7MS

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/QEG5X7MSTBTDWGIICKXVMGOVLO \
  | 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: 810ddbfd9298663b190812af5619d55b9f0c05a3481782203df171f15036feaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d594014c3ef4c098aa4609ed49e1a38d43bfa2806369c49634a15de844567ec",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2015-02-16T17:21:03Z",
    "title_canon_sha256": "da433bcbd5b98342112556f05b98c15663719ff6c8ed3ee19204ae1842be1e44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04638",
    "kind": "arxiv",
    "version": 1
  }
}