Pith Number

pith:5VIFRG2K

pith:2013:5VIFRG2KMZHDIK56FRG4FPZE3N

not attested not anchored not stored refs pending

Kalman filtering techniques for focal plane electric field estimation

N. Jeremy Kasdin, Tyler D. Groff

arxiv:1301.3828 v1 · 2013-01-16 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5VIFRG2KMZHDIK56FRG4FPZE3N}

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	2026-05-18T03:19:45.774180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed50589b4a664e342bbe2c4dc2bf24db5e9a88f3c4e4d56cf46da9b0df138e53

Aliases

arxiv: 1301.3828 · arxiv_version: 1301.3828v1 · doi: 10.48550/arxiv.1301.3828 · pith_short_12: 5VIFRG2KMZHD · pith_short_16: 5VIFRG2KMZHDIK56 · pith_short_8: 5VIFRG2K

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/5VIFRG2KMZHDIK56FRG4FPZE3N \
  | 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: ed50589b4a664e342bbe2c4dc2bf24db5e9a88f3c4e4d56cf46da9b0df138e53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b7030aee28c9c6a15f96bbfa62cebc08718fb29186d1bbe65b6a8162e0a9d8a",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-01-16T20:59:59Z",
    "title_canon_sha256": "87e4f76a1ffa2fe66e0e9083f79faffa74201d073367bdcce8d400ab151b0552"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3828",
    "kind": "arxiv",
    "version": 1
  }
}