Pith Number

pith:JRHBLLVX

pith:2018:JRHBLLVXDSPE3I6GP7IN7WOAK7

not attested not anchored not stored refs pending

Emanuel Parzen: A Memorial, and a Model With the Two Kernels That He Championed

Grace Wahba

arxiv:1803.05555 v1 · 2018-03-15 · stat.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JRHBLLVXDSPE3I6GP7IN7WOAK7}

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	2026-05-18T00:20:55.149116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c4e15aeb71c9e4da3c67fd0dfd9c057ce90a925e26500e053fcbbc2d88e9b0f

Aliases

arxiv: 1803.05555 · arxiv_version: 1803.05555v1 · doi: 10.48550/arxiv.1803.05555 · pith_short_12: JRHBLLVXDSPE · pith_short_16: JRHBLLVXDSPE3I6G · pith_short_8: JRHBLLVX

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/JRHBLLVXDSPE3I6GP7IN7WOAK7 \
  | 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: 4c4e15aeb71c9e4da3c67fd0dfd9c057ce90a925e26500e053fcbbc2d88e9b0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "349429c75a3582e9810f6396b78dcd87a2aebbb42801194bc196d84db59cf148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.OT",
    "submitted_at": "2018-03-15T00:58:26Z",
    "title_canon_sha256": "cc120d1b1bd4fb61ff7cd0f9c8182c818a12d145b1faec80753e6e35f9859ee3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05555",
    "kind": "arxiv",
    "version": 1
  }
}