Pith Number

pith:AOGCWUX2

pith:2016:AOGCWUX2KBX4ZYSNK3T6XOCEHW

not attested not anchored not stored refs pending

Why Nominal-Typing Matters in OOP

Moez A. AbdelGawad

arxiv:1606.03809 v3 · 2016-06-13 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AOGCWUX2KBX4ZYSNK3T6XOCEHW}

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	2026-05-18T00:27:04.878913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

038c2b52fa506fcce24d56e7ebb8443d814f62f20f4643e8cd0bb2336b6f877d

Aliases

arxiv: 1606.03809 · arxiv_version: 1606.03809v3 · doi: 10.48550/arxiv.1606.03809 · pith_short_12: AOGCWUX2KBX4 · pith_short_16: AOGCWUX2KBX4ZYSN · pith_short_8: AOGCWUX2

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/AOGCWUX2KBX4ZYSNK3T6XOCEHW \
  | 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: 038c2b52fa506fcce24d56e7ebb8443d814f62f20f4643e8cd0bb2336b6f877d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa46f01f3e9e859d5fcfdfbe1dae1fb9069f0a61d16e9399246f4467fa683acb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2016-06-13T04:37:13Z",
    "title_canon_sha256": "e647bca3afd4120584663426ab1cfcd3d5f42d498e09a77474c1e048f1005814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.03809",
    "kind": "arxiv",
    "version": 3
  }
}