Pith Number

pith:ULREAXST

pith:2018:ULREAXSTC7UAA4ZJAFSWJOW7PN

not attested not anchored not stored refs pending

NOOP: A Domain-Theoretic Model of Nominally-Typed OOP

Moez AbdelGawad, Robert Cartwright

arxiv:1801.06793 v1 · 2018-01-21 · cs.PL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULREAXSTC7UAA4ZJAFSWJOW7PN}

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	2026-05-18T00:25:27.717603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e2405e5317e8007329016564badf7b57d7daf460a3202c1222c1c2aa6bc975

Aliases

arxiv: 1801.06793 · arxiv_version: 1801.06793v1 · doi: 10.48550/arxiv.1801.06793 · pith_short_12: ULREAXSTC7UA · pith_short_16: ULREAXSTC7UAA4ZJ · pith_short_8: ULREAXST

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/ULREAXSTC7UAA4ZJAFSWJOW7PN \
  | 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: a2e2405e5317e8007329016564badf7b57d7daf460a3202c1222c1c2aa6bc975

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dd51d6be52804a68fd301d35bd31a6ebe45940c7c69bbdb0be5ace8ebef17eb",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-01-21T09:17:31Z",
    "title_canon_sha256": "5fdf19d61c311f743a6f6fa6930439ffa52497d86d11a7ab293d6a17ab67ff77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06793",
    "kind": "arxiv",
    "version": 1
  }
}