Pith Number

pith:J2WIYOA6

pith:2018:J2WIYOA6OZ42YEZXLWFK5UAIMK

not attested not anchored not stored refs pending

Computational Optimal Transport: Complexity by Accelerated Gradient Descent Is Better Than by Sinkhorn's Algorithm

Alexander Gasnikov, Alexey Kroshnin, Pavel Dvurechensky

arxiv:1802.04367 v2 · 2018-02-12 · cs.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2WIYOA6OZ42YEZXLWFK5UAIMK}

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	2026-05-18T00:14:00.293802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eac8c381e7679ac13375d8aaed00862a5e89c447f09f09353a4a80bfd470ee8

Aliases

arxiv: 1802.04367 · arxiv_version: 1802.04367v2 · doi: 10.48550/arxiv.1802.04367 · pith_short_12: J2WIYOA6OZ42 · pith_short_16: J2WIYOA6OZ42YEZX · pith_short_8: J2WIYOA6

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/J2WIYOA6OZ42YEZXLWFK5UAIMK \
  | 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: 4eac8c381e7679ac13375d8aaed00862a5e89c447f09f09353a4a80bfd470ee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "149c841ac2a8630f22726d7481b088b55d75950469b905d5c9882f3bbd214516",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-12T21:33:39Z",
    "title_canon_sha256": "f81dab1cf6abb970d45c40cc00ef4474d3db426308fed02d5ddfda4eb551dcaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04367",
    "kind": "arxiv",
    "version": 2
  }
}