Pith Number

pith:RRKGTLFS

pith:2022:RRKGTLFS2EDNTAVEOWDRQ3HCO6

not attested not anchored not stored refs pending

Supervised Optimal Transport

Qing Nie, Yanxiang Zhao, Zixuan Cang

arxiv:2206.13410 v1 · 2022-06-27 · 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{RRKGTLFS2EDNTAVEOWDRQ3HCO6}

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	2026-07-05T04:35:06.572992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c5469acb2d106d982a47587186ce277b9652d328a4fb1a95408efd871c10c1f

Aliases

arxiv: 2206.13410 · arxiv_version: 2206.13410v1 · doi: 10.48550/arxiv.2206.13410 · pith_short_12: RRKGTLFS2EDN · pith_short_16: RRKGTLFS2EDNTAVE · pith_short_8: RRKGTLFS

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/RRKGTLFS2EDNTAVEOWDRQ3HCO6 \
  | 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: 8c5469acb2d106d982a47587186ce277b9652d328a4fb1a95408efd871c10c1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3f79134ea6ceef49605e64f04be79b5b6dd13bb09a75f9d60d63ba6797a7237",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-06-27T16:00:59Z",
    "title_canon_sha256": "73d8bfa2f98f129dfbd9c67d7f1a2c06862157011558c7224a2b93ecb94f026d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.13410",
    "kind": "arxiv",
    "version": 1
  }
}