Pith Number

pith:MREQRSOI

pith:2017:MREQRSOID6F7I6OTDAJIVF6SCU

not attested not anchored not stored refs pending

The boundary method for semi-discrete optimal transport partitions and Wasserstein distance computation

J.D. Walsh III, Luca Dieci

arxiv:1702.03517 v3 · 2017-02-12 · math.NA · 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{MREQRSOID6F7I6OTDAJIVF6SCU}

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	2026-05-17T23:47:12.908931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

644908c9c81f8bf479d318128a97d21501d7b31a3da00a42595d09b1f32b5dbf

Aliases

arxiv: 1702.03517 · arxiv_version: 1702.03517v3 · doi: 10.48550/arxiv.1702.03517 · pith_short_12: MREQRSOID6F7 · pith_short_16: MREQRSOID6F7I6OT · pith_short_8: MREQRSOI

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/MREQRSOID6F7I6OTDAJIVF6SCU \
  | 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: 644908c9c81f8bf479d318128a97d21501d7b31a3da00a42595d09b1f32b5dbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23a2b74308c38bcf087aa3f83e28186c6ddaf14f83db333cdae46bdbcb728cfc",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-02-12T11:58:08Z",
    "title_canon_sha256": "c0d49b611076b8a053f0eb1e87ceb9265693c85ecee23b4271a4791f3c3075ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03517",
    "kind": "arxiv",
    "version": 3
  }
}