Pith Number

pith:KUEHBYD4

pith:2010:KUEHBYD4AZQWTID5NMVA6RQ7WH

not attested not anchored not stored refs pending

An efficient numerical algorithm for the L2 optimal transport problem with applications to image processing

Boualem Khouider, Louis-Philippe Saumier, Martial Agueh

arxiv:1009.6039 v2 · 2010-09-30 · 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{KUEHBYD4AZQWTID5NMVA6RQ7WH}

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	2026-05-18T04:27:38.032051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

550870e07c066169a07d6b2a0f461fb1fb53367129295bf17a85c00f13c4237a

Aliases

arxiv: 1009.6039 · arxiv_version: 1009.6039v2 · doi: 10.48550/arxiv.1009.6039 · pith_short_12: KUEHBYD4AZQW · pith_short_16: KUEHBYD4AZQWTID5 · pith_short_8: KUEHBYD4

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/KUEHBYD4AZQWTID5NMVA6RQ7WH \
  | 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: 550870e07c066169a07d6b2a0f461fb1fb53367129295bf17a85c00f13c4237a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d13dfc7e7ae98edd13d91b744db82c40af24c9456d592577d82b8bd3e35c7f00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-09-30T05:17:16Z",
    "title_canon_sha256": "bc4ce6b04f7cd7c2e4d9ed42ddc00740baa974c116efdcb5d5c4daa91b90b42d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.6039",
    "kind": "arxiv",
    "version": 2
  }
}