Pith Number

pith:XWDJTCJI

pith:2010:XWDJTCJIJU62IZX2BQOY7HOBUU

not attested not anchored not stored refs pending

A new bound of concurrence

Jing-Ling Chen, Zhihao Ma

arxiv:1003.1440 v2 · 2010-03-07 · quant-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{XWDJTCJIJU62IZX2BQOY7HOBUU}

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	2026-05-18T02:08:45.306312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd869989284d3da466fa0c1d8f9dc1a53f45b48695693e266bb812ac00ee38d2

Aliases

arxiv: 1003.1440 · arxiv_version: 1003.1440v2 · doi: 10.48550/arxiv.1003.1440 · pith_short_12: XWDJTCJIJU62 · pith_short_16: XWDJTCJIJU62IZX2 · pith_short_8: XWDJTCJI

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/XWDJTCJIJU62IZX2BQOY7HOBUU \
  | 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: bd869989284d3da466fa0c1d8f9dc1a53f45b48695693e266bb812ac00ee38d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afb5637a17b1c4556aeeda27ad123f8afd3f8e3ce6aa8763bfdc60ce1fb0dc68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-03-07T06:56:37Z",
    "title_canon_sha256": "0087c7f2b2b271980ecce1b7d95b8988bf1c57380704e75e422c7a2e24c23394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1440",
    "kind": "arxiv",
    "version": 2
  }
}