Pith Number

pith:X5T6T2CY

pith:2013:X5T6T2CY36R3SFHWCFVM2IYWKP

not attested not anchored not stored refs pending

Optimal filtering and the dual process

Matteo Ruggiero, Omiros Papaspiliopoulos

arxiv:1305.4571 v4 · 2013-05-20 · math.ST · math.PR · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X5T6T2CY36R3SFHWCFVM2IYWKP}

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	2026-05-18T02:39:38.341592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf67e9e858dfa3b914f6116acd231653c668927298b882e3ce8a2ef8570df5b5

Aliases

arxiv: 1305.4571 · arxiv_version: 1305.4571v4 · doi: 10.48550/arxiv.1305.4571 · pith_short_12: X5T6T2CY36R3 · pith_short_16: X5T6T2CY36R3SFHW · pith_short_8: X5T6T2CY

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/X5T6T2CY36R3SFHWCFVM2IYWKP \
  | 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: bf67e9e858dfa3b914f6116acd231653c668927298b882e3ce8a2ef8570df5b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4602fe1ab30ec79c4bcd994634947c7d56be4a7f70ddd5238a74e4a9ec072fc",
    "cross_cats_sorted": [
      "math.PR",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-05-20T16:32:27Z",
    "title_canon_sha256": "90ef06b9a9b4f09273e6332b65e2f65233426891841b4839b31eb711cd8f5e3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4571",
    "kind": "arxiv",
    "version": 4
  }
}