Pith Number

pith:E5LSCI27

pith:2019:E5LSCI27FKFAJNHOEKR2EJBEQR

not attested not anchored not stored refs pending

Improved Algorithms for the Bichromatic Two-Center Problem for Pairs of Points

Haitao Wang, Jie Xue

arxiv:1905.00157 v1 · 2019-05-01 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5LSCI27FKFAJNHOEKR2EJBEQR}

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	2026-05-17T23:47:13.547255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275721235f2a8a04b4ee22a3a224248467949dcca29e5dcd654b1bea92e256db

Aliases

arxiv: 1905.00157 · arxiv_version: 1905.00157v1 · doi: 10.48550/arxiv.1905.00157 · pith_short_12: E5LSCI27FKFA · pith_short_16: E5LSCI27FKFAJNHO · pith_short_8: E5LSCI27

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/E5LSCI27FKFAJNHOEKR2EJBEQR \
  | 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: 275721235f2a8a04b4ee22a3a224248467949dcca29e5dcd654b1bea92e256db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d141f38ed35c8daabb23c646cb29356dd38374610989dfe35d1260de5ee3a1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-05-01T01:29:21Z",
    "title_canon_sha256": "c16f6aed969c2162bb316c5fd8787f1b7933a9e19c59eeb3cbb026620c32e128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00157",
    "kind": "arxiv",
    "version": 1
  }
}