Pith Number

pith:NGPZXBZA

pith:2010:NGPZXBZAKFGWCUYAI6ZOOUS3JF

not attested not anchored not stored refs pending

Some improved results on communication between information systems

Ping Zhu, Qiaoyan Wen

arxiv:1002.0449 v2 · 2010-02-02 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGPZXBZAKFGWCUYAI6ZOOUS3JF}

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	2026-05-18T02:24:39.267699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

699f9b8720514d61530047b2e7525b495dbaed458cc3975959e5a36f5a3a369a

Aliases

arxiv: 1002.0449 · arxiv_version: 1002.0449v2 · doi: 10.48550/arxiv.1002.0449 · pith_short_12: NGPZXBZAKFGW · pith_short_16: NGPZXBZAKFGWCUYA · pith_short_8: NGPZXBZA

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/NGPZXBZAKFGWCUYAI6ZOOUS3JF \
  | 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: 699f9b8720514d61530047b2e7525b495dbaed458cc3975959e5a36f5a3a369a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2ef5a45b2b94532d79eb61c601233d3a64544ea12c66d0f43faad562c39bd28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2010-02-02T10:54:30Z",
    "title_canon_sha256": "0536cc980f97af9a18ef44103b5a62b41679942c29ba4bc6f732908c7e5ea5c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.0449",
    "kind": "arxiv",
    "version": 2
  }
}