Pith Number

pith:SKEJQSFU

pith:2019:SKEJQSFUR3CAXFDMDHJXQ4CXEQ

not attested not anchored not stored refs pending

Direction Selection in Stochastic Directional Distance Functions

Andrew L. Johnson, Gary D. Ferrier, Kevin Layer, Robin C. Sickles

arxiv:1904.01524 v2 · 2019-04-02 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SKEJQSFUR3CAXFDMDHJXQ4CXEQ}

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	2026-05-17T23:49:28.593261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92889848b48ec40b946c19d3787057240446fcb63c0c91a948e9b6e2271d604b

Aliases

arxiv: 1904.01524 · arxiv_version: 1904.01524v2 · doi: 10.48550/arxiv.1904.01524 · pith_short_12: SKEJQSFUR3CA · pith_short_16: SKEJQSFUR3CAXFDM · pith_short_8: SKEJQSFU

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/SKEJQSFUR3CAXFDMDHJXQ4CXEQ \
  | 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: 92889848b48ec40b946c19d3787057240446fcb63c0c91a948e9b6e2271d604b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eb9ec588c1d2656709a023282d65f56a356cdc4685db14db2ab15ed823f7a25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2019-04-02T16:14:01Z",
    "title_canon_sha256": "df8798d12360cb2bc50e1bcf9a091d3afdd417444d1de3a428ceacf8bdd23cd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01524",
    "kind": "arxiv",
    "version": 2
  }
}