Pith Number

pith:BCJMAEMC

pith:2020:BCJMAEMCAWPK5H5D3XRBH7MGFT

not attested not anchored not stored refs pending

Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA

Caroline S. Wagner, Lin Zhang, Loet Leydesdorff

arxiv:2011.08591 v1 · 2020-11-17 · 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{BCJMAEMCAWPK5H5D3XRBH7MGFT}

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	2026-07-05T01:52:06.721904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0892c01182059eae9fa3dde213fd862ce7245ff415c1bbdd6bbd17bf9fe32c73

Aliases

arxiv: 2011.08591 · arxiv_version: 2011.08591v1 · doi: 10.48550/arxiv.2011.08591 · pith_short_12: BCJMAEMCAWPK · pith_short_16: BCJMAEMCAWPK5H5D · pith_short_8: BCJMAEMC

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/BCJMAEMCAWPK5H5D3XRBH7MGFT \
  | 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: 0892c01182059eae9fa3dde213fd862ce7245ff415c1bbdd6bbd17bf9fe32c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7002e6dc9d01e08abffb43733004ee6bafcf6dd14725d8776e84aed1c9c5fe35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-11-17T12:27:40Z",
    "title_canon_sha256": "7bedef4be64e597ffec399f9a31c9a3c3b91e26032528986d7d20dd010c243e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.08591",
    "kind": "arxiv",
    "version": 1
  }
}