Pith Number

pith:YOXZHQH5

pith:2019:YOXZHQH5E3W3JTNV5YP76PRE7G

not attested not anchored not stored refs pending

Thinging for Computational Thinking

Ali Abdullah Alkhaldi, Sabah Al-Fedaghi

arxiv:1903.01900 v1 · 2019-02-28 · 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{YOXZHQH5E3W3JTNV5YP76PRE7G}

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	2026-05-17T23:51:59.475084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3af93c0fd26edb4cdb5ee1fff3e24f9bd5c9d384bd75b200846a8a69a638cd6

Aliases

arxiv: 1903.01900 · arxiv_version: 1903.01900v1 · doi: 10.48550/arxiv.1903.01900 · pith_short_12: YOXZHQH5E3W3 · pith_short_16: YOXZHQH5E3W3JTNV · pith_short_8: YOXZHQH5

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/YOXZHQH5E3W3JTNV5YP76PRE7G \
  | 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: c3af93c0fd26edb4cdb5ee1fff3e24f9bd5c9d384bd75b200846a8a69a638cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "953a4048e09cfdeafeffce8539a2cf01b2886c11b541630e369e4d38209f017b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-02-28T17:22:37Z",
    "title_canon_sha256": "b0fb9d67ca02bbe7ffad14be5c957f6f02b570758dd5be6b73e013183d9aab0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01900",
    "kind": "arxiv",
    "version": 1
  }
}