Pith Number

pith:7Q3Y5AS5

pith:2018:7Q3Y5AS53YS5WW53TSTCN3EGCL

not attested not anchored not stored refs pending

Approximating optimal transport with linear programs

Kent Quanrud

arxiv:1810.05957 v2 · 2018-10-14 · 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{7Q3Y5AS53YS5WW53TSTCN3EGCL}

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.

Cited by

1 paper in Pith

Optimizing Computational-Statistical Runtime for Wasserstein Distance Estimation

Receipt and verification

First computed	2026-05-18T00:02:44.101690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc378e825dde25db5bbb9ca626ec8612ec7e0f736e75c53288febc356535e574

Aliases

arxiv: 1810.05957 · arxiv_version: 1810.05957v2 · doi: 10.48550/arxiv.1810.05957 · pith_short_12: 7Q3Y5AS53YS5 · pith_short_16: 7Q3Y5AS53YS5WW53 · pith_short_8: 7Q3Y5AS5

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/7Q3Y5AS53YS5WW53TSTCN3EGCL \
  | 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: fc378e825dde25db5bbb9ca626ec8612ec7e0f736e75c53288febc356535e574

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c61e3344b14b71d406d6974fb8ff351622e322ac72498368126050e76534ba7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-10-14T03:02:25Z",
    "title_canon_sha256": "07bb8d90bfc3e105007bc7eb6eca2534cb3cc6b3488a68941b50d594a7eeab53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05957",
    "kind": "arxiv",
    "version": 2
  }
}