Pith Number

pith:H4OVFKOD

pith:2012:H4OVFKODDRU2DIIMIBIZQ5FPUN

not attested not anchored not stored refs pending

Identifying Topical Twitter Communities via User List Aggregation

Derek Greene, Derek O'Callaghan, P\'adraig Cunningham

arxiv:1207.0017 v1 · 2012-06-29 · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4OVFKODDRU2DIIMIBIZQ5FPUN}

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	2026-05-18T03:52:00.534435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f1d52a9c31c69a1a10c40519874afa35cec3d2f4eed3df652c3bf46acf7d596

Aliases

arxiv: 1207.0017 · arxiv_version: 1207.0017v1 · doi: 10.48550/arxiv.1207.0017 · pith_short_12: H4OVFKODDRU2 · pith_short_16: H4OVFKODDRU2DIIM · pith_short_8: H4OVFKOD

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/H4OVFKODDRU2DIIMIBIZQ5FPUN \
  | 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: 3f1d52a9c31c69a1a10c40519874afa35cec3d2f4eed3df652c3bf46acf7d596

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d73f76d5c53edd7509c24678fa86d4ab8c18de6420ed69f5a60ef7bbf32e49e",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2012-06-29T20:42:21Z",
    "title_canon_sha256": "124dec56bca2b2048f2ba8f66ec3453bc85032f4a53678c99363244ca01b4d1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0017",
    "kind": "arxiv",
    "version": 1
  }
}