Pith Number

pith:HJ6ADCXV

pith:2025:HJ6ADCXVDZ4XALGU27IVHG7L5L

not attested not anchored not stored refs pending

Efficient Numerical Strategies for Entropy-Regularized Semi-Discrete Optimal Transport

Francesco Romor, Gianluigi Rozza, Moaad Khamlich

arxiv:2507.23602 v1 · 2025-07-31 · math.NA · cs.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{HJ6ADCXVDZ4XALGU27IVHG7L5L}

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	2026-07-05T11:46:27.551707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a7c018af51e79702cd4d7d1539bebeaf16a37853c94d6a6a85d6b7349331eff

Aliases

arxiv: 2507.23602 · arxiv_version: 2507.23602v1 · doi: 10.48550/arxiv.2507.23602 · pith_short_12: HJ6ADCXVDZ4X · pith_short_16: HJ6ADCXVDZ4XALGU · pith_short_8: HJ6ADCXV

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/HJ6ADCXVDZ4XALGU27IVHG7L5L \
  | 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: 3a7c018af51e79702cd4d7d1539bebeaf16a37853c94d6a6a85d6b7349331eff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cafa15bc5c297fad153ddd22049cc89836c08d800b74b1a8142fb9cf9b8cd28",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-07-31T14:40:43Z",
    "title_canon_sha256": "7c44f5f59baf72c92aa07caa8fa3f0653b0d4931da1c08bf2ea1266759c59ecb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.23602",
    "kind": "arxiv",
    "version": 1
  }
}