Pith Number

pith:H7KAN2F7

pith:2018:H7KAN2F7ZBA73LJLWPLOHGJCP5

not attested not anchored not stored refs pending

Fast iterative solvers for an optimal transport problem

John W. Pearson, Martin Stoll, Roland Herzog

arxiv:1801.04172 v1 · 2018-01-12 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7KAN2F7ZBA73LJLWPLOHGJCP5}

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	2026-05-18T00:26:09.595281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fd406e8bfc841fdad2bb3d6e399227f52a0b12f0ddc76fc4071a772f8cd09df

Aliases

arxiv: 1801.04172 · arxiv_version: 1801.04172v1 · doi: 10.48550/arxiv.1801.04172 · pith_short_12: H7KAN2F7ZBA7 · pith_short_16: H7KAN2F7ZBA73LJL · pith_short_8: H7KAN2F7

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/H7KAN2F7ZBA73LJLWPLOHGJCP5 \
  | 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: 3fd406e8bfc841fdad2bb3d6e399227f52a0b12f0ddc76fc4071a772f8cd09df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1379383d53ca42415afb363791ac8c5df7b124bb497565824653c9aab2d1f298",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-12T14:13:40Z",
    "title_canon_sha256": "2d019c4d0fd44e6e55e8742c67f7ec9926e8471e129bc6e9ab7d1bef7a89a48a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04172",
    "kind": "arxiv",
    "version": 1
  }
}