Pith Number

pith:4H2FH5TW

pith:2018:4H2FH5TWAOVJEDMDVGTUQIGM5A

not attested not anchored not stored refs pending

Build up of a subject classification system from collective intelligence

Jinhyuk Yun, Jisung Yoon, Woo-Sung Jung

arxiv:1804.00026 v2 · 2018-03-30 · physics.soc-ph · 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{4H2FH5TWAOVJEDMDVGTUQIGM5A}

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	2026-05-18T00:11:57.067675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f453f67603aa920d83a9a74820cce817a2fca5734a2aa95fc8a79f7125b95c

Aliases

arxiv: 1804.00026 · arxiv_version: 1804.00026v2 · doi: 10.48550/arxiv.1804.00026 · pith_short_12: 4H2FH5TWAOVJ · pith_short_16: 4H2FH5TWAOVJEDMD · pith_short_8: 4H2FH5TW

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/4H2FH5TWAOVJEDMDVGTUQIGM5A \
  | 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: e1f453f67603aa920d83a9a74820cce817a2fca5734a2aa95fc8a79f7125b95c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19e0f3b8a004c5edb22f4c17eb3ea868ecdf3a4d9048ac20fd87bcf2ed7a04da",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-03-30T18:36:17Z",
    "title_canon_sha256": "261f759265e54a620877149dd4142d3a57a1a34b16d80079e01ba4ce5a6b2cbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00026",
    "kind": "arxiv",
    "version": 2
  }
}