Pith Number

pith:USUAKUPK

pith:2013:USUAKUPKZ6EYGD4O6EBI5PIGG2

not attested not anchored not stored refs pending

On the Internal Dynamics of the Shanghai Ranking

Domingo Docampo, Lawrence Cram

arxiv:1309.7099 v1 · 2013-09-27 · 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{USUAKUPKZ6EYGD4O6EBI5PIGG2}

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	2026-05-18T03:10:26.049267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4a80551eacf89830f8ef1028ebd06368103af2229008104bbed5404ba7af07c

Aliases

arxiv: 1309.7099 · arxiv_version: 1309.7099v1 · doi: 10.48550/arxiv.1309.7099 · pith_short_12: USUAKUPKZ6EY · pith_short_16: USUAKUPKZ6EYGD4O · pith_short_8: USUAKUPK

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/USUAKUPKZ6EYGD4O6EBI5PIGG2 \
  | 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: a4a80551eacf89830f8ef1028ebd06368103af2229008104bbed5404ba7af07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c003d5eb979fea0c5dadbe8a4227306bc9202bcd3ecb14359d86bd0297cc5ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2013-09-27T01:47:37Z",
    "title_canon_sha256": "d1aae6db4a1a0bc1e825ec6278d784f6090c793e778546e80967d3bda06434b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7099",
    "kind": "arxiv",
    "version": 1
  }
}