Pith Number

pith:U22I6E46

pith:2019:U22I6E46X2NA3DH3HWTP326R4S

not attested not anchored not stored refs pending

Inferring Concise Specifications of APIs

David R. Cok, Gary T. Leavens, Hridesh Rajan, John L. Singleton

arxiv:1905.06847 v1 · 2019-05-16 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U22I6E46X2NA3DH3HWTP326R4S}

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	2026-05-17T23:46:00.852005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b48f139ebe9a0d8cfb3da6fdebd1e4be124432a2c4a35c318ce91fc7f373a1

Aliases

arxiv: 1905.06847 · arxiv_version: 1905.06847v1 · doi: 10.48550/arxiv.1905.06847 · pith_short_12: U22I6E46X2NA · pith_short_16: U22I6E46X2NA3DH3 · pith_short_8: U22I6E46

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/U22I6E46X2NA3DH3HWTP326R4S \
  | 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: a6b48f139ebe9a0d8cfb3da6fdebd1e4be124432a2c4a35c318ce91fc7f373a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae1bae00084e82586ab589392f326857b9b57c5e8a8bc6102d991a250c3964ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-05-16T15:35:22Z",
    "title_canon_sha256": "3f9ca4c103db400ba4adb92af7284b4d5d24cfeb780a3ad68851ad4f8d81b856"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06847",
    "kind": "arxiv",
    "version": 1
  }
}