Pith Number

pith:MHUOZQF7

pith:2020:MHUOZQF7IQXB2GD2W7NAEMROX2

not attested not anchored not stored refs pending

Learning Cost Functions for Optimal Transport

Haodong Sun, Haomin Zhou, Hongyuan Zha, Shaojun Ma, Xiaojing Ye

arxiv:2002.09650 v2 · 2020-02-22 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MHUOZQF7IQXB2GD2W7NAEMROX2}

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

2 papers in Pith

Bridging Vision and Language Concepts through Optimal Transport Semantic Flow

Well-Posedness and Efficient Algorithms for Inverse Optimal Transport with Bregman Regularization

Receipt and verification

First computed	2026-07-05T02:54:49.554158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61e8ecc0bf442e1d187ab7da02322ebe9df24445d6f388ae9d19006b4d7d34a9

Aliases

arxiv: 2002.09650 · arxiv_version: 2002.09650v2 · doi: 10.48550/arxiv.2002.09650 · pith_short_12: MHUOZQF7IQXB · pith_short_16: MHUOZQF7IQXB2GD2 · pith_short_8: MHUOZQF7

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/MHUOZQF7IQXB2GD2W7NAEMROX2 \
  | 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: 61e8ecc0bf442e1d187ab7da02322ebe9df24445d6f388ae9d19006b4d7d34a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30adbd899f856ef98ab8ef414cf564fea8ad70e3c1b075a0fabc8db05a008fd3",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-22T07:27:17Z",
    "title_canon_sha256": "6ab3f62bd990647abb6f3f1986bf66ddf7a18789c7317fa32c386219398d0c4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.09650",
    "kind": "arxiv",
    "version": 2
  }
}