Pith Number

pith:34Z5HRBP

pith:2019:34Z5HRBPHADWFUQSPCKJUUXCZI

not attested not anchored not stored refs pending

Faster Algorithms for the Geometric Transportation Problem

Allen Xiao, Debmalya Panigrahi, Kasturi R. Varadarajan, Kyle Fox, Pankaj K. Agarwal

arxiv:1903.08263 v1 · 2019-03-19 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34Z5HRBPHADWFUQSPCKJUUXCZI}

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	2026-05-17T23:50:49.866234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df33d3c42f380762d21278949a52e2ca141ae6d5b63ddb820a5fe7b0a4969254

Aliases

arxiv: 1903.08263 · arxiv_version: 1903.08263v1 · doi: 10.48550/arxiv.1903.08263 · pith_short_12: 34Z5HRBPHADW · pith_short_16: 34Z5HRBPHADWFUQS · pith_short_8: 34Z5HRBP

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/34Z5HRBPHADWFUQSPCKJUUXCZI \
  | 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: df33d3c42f380762d21278949a52e2ca141ae6d5b63ddb820a5fe7b0a4969254

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82b035c1941cc15da19a12a701050d753a0363732b2f8a83377c0338f3defd21",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-03-19T21:37:18Z",
    "title_canon_sha256": "fa8f8c64917be18d97f387301ae1533399439563755fab70035ab7a7ba79a34a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08263",
    "kind": "arxiv",
    "version": 1
  }
}