Pith Number

pith:3NX2DNMP

pith:2002:3NX2DNMPFLQCRCUL6524PJAOLJ

not attested not anchored not stored refs pending

The structure of broad topics on the Web

David M. Pennock, Kunal Punera, Mukul M. Joshi, Soumen Chakrabarti

arxiv:cs/0203024 v1 · 2002-03-20 · cs.IR · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3NX2DNMPFLQCRCUL6524PJAOLJ}

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	2026-05-18T00:23:21.798508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db6fa1b58f2ae0288a8bf775c7a40e5a6eeecdec66f79f07c02863317aa3a6bc

Aliases

arxiv: cs/0203024 · arxiv_version: cs/0203024v1 · doi: 10.48550/arxiv.cs/0203024 · pith_short_12: 3NX2DNMPFLQC · pith_short_16: 3NX2DNMPFLQCRCUL · pith_short_8: 3NX2DNMP

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/3NX2DNMPFLQCRCUL6524PJAOLJ \
  | 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: db6fa1b58f2ae0288a8bf775c7a40e5a6eeecdec66f79f07c02863317aa3a6bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42001245ada2e12a1f6ee6975794ebef4bdaee7b4bd8c18e5666b9044b57e15b",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "",
    "primary_cat": "cs.IR",
    "submitted_at": "2002-03-20T06:46:21Z",
    "title_canon_sha256": "652b194776bf023e243a45c11c8fc6f5480f5492fbd9c159d07bbcddc0546e50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0203024",
    "kind": "arxiv",
    "version": 1
  }
}