Pith Number

pith:DIZLXDIT

pith:2017:DIZLXDITOSYAEUF6WVLGQD6RPO

not attested not anchored not stored refs pending

Quadratically-Regularized Optimal Transport on Graphs

Justin Solomon, Montacer Essid

arxiv:1704.08200 v4 · 2017-04-26 · math.OC · cs.NA · 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{DIZLXDITOSYAEUF6WVLGQD6RPO}

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	2026-05-18T00:20:22.228980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a32bb8d1374b00250beb556680fd17bae564e58c3c33747028ede9ad3a8f447

Aliases

arxiv: 1704.08200 · arxiv_version: 1704.08200v4 · doi: 10.48550/arxiv.1704.08200 · pith_short_12: DIZLXDITOSYA · pith_short_16: DIZLXDITOSYAEUF6 · pith_short_8: DIZLXDIT

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/DIZLXDITOSYAEUF6WVLGQD6RPO \
  | 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: 1a32bb8d1374b00250beb556680fd17bae564e58c3c33747028ede9ad3a8f447

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73474ed1e896fd3559ecc3cdb598bc2dbb83ef4b05d377c1012844f45799109",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-04-26T16:37:42Z",
    "title_canon_sha256": "0215d9cbee7b6774a42e89dd2df25f7f9c0c908bcd05cbd9957469b2ac4352a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08200",
    "kind": "arxiv",
    "version": 4
  }
}