Pith Number

pith:NP6QHYP7

pith:2010:NP6QHYP7MZKRYV5KCWQAZL3ZIB

not attested not anchored not stored refs pending

Towards a new crown indicator: Some theoretical considerations

Anthony F.J. van Raan, Ludo Waltman, Martijn S. Visser, Nees Jan van Eck, Thed N. van Leeuwen

arxiv:1003.2167 v2 · 2010-03-10 · cs.DL · 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{NP6QHYP7MZKRYV5KCWQAZL3ZIB}

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	2026-05-18T04:42:13.699451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bfd03e1ff66551c57aa15a00caf79406450c6abd6d95f3b5f3f09d5d04b032c

Aliases

arxiv: 1003.2167 · arxiv_version: 1003.2167v2 · doi: 10.48550/arxiv.1003.2167 · pith_short_12: NP6QHYP7MZKR · pith_short_16: NP6QHYP7MZKRYV5K · pith_short_8: NP6QHYP7

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/NP6QHYP7MZKRYV5KCWQAZL3ZIB \
  | 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: 6bfd03e1ff66551c57aa15a00caf79406450c6abd6d95f3b5f3f09d5d04b032c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6068b7a6b5aab696a5a9a4cb8c2f08acb131dfe0fd4acadd5c2ec6017903a2f9",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2010-03-10T18:23:57Z",
    "title_canon_sha256": "5961c51ae0266d34ae6a30ddfb571de41e80fa009b369358a477a6fe8726edc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.2167",
    "kind": "arxiv",
    "version": 2
  }
}