Pith Number

pith:X5UHAQYA

pith:2013:X5UHAQYAKZCMLGC6IKLJMIVUUL

not attested not anchored not stored refs pending

Conceptual Understanding of Computer Program Execution: Application to C++

Sabah Al-Fedaghi

arxiv:1304.5893 v1 · 2013-04-22 · 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{X5UHAQYAKZCMLGC6IKLJMIVUUL}

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	2026-05-18T03:27:23.853554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf687043005644c5985e42969622b4a2d971f4dd6270238a8d2ee4d8f5442e24

Aliases

arxiv: 1304.5893 · arxiv_version: 1304.5893v1 · doi: 10.48550/arxiv.1304.5893 · pith_short_12: X5UHAQYAKZCM · pith_short_16: X5UHAQYAKZCMLGC6 · pith_short_8: X5UHAQYA

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/X5UHAQYAKZCMLGC6IKLJMIVUUL \
  | 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: bf687043005644c5985e42969622b4a2d971f4dd6270238a8d2ee4d8f5442e24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e87b392cf5961cd9e8993966e9378524ead07ee440159dac8395567b40265987",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2013-04-22T09:41:42Z",
    "title_canon_sha256": "2acb415c4b099a57300f4931665d7cbd108187241ada0ebedf208eb7704bb4f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5893",
    "kind": "arxiv",
    "version": 1
  }
}