Pith Number

pith:NKOEJKDR

pith:2015:NKOEJKDR6N3KCTCYPQFGDI4LMO

not attested not anchored not stored refs pending

Geometrically continuous splines for surfaces of arbitrary topology

Bernard Mourrain (GALAAD2), Nelly Villamizar (RICAM), Raimundas Vidunas

arxiv:1509.03274 v2 · 2015-09-10 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NKOEJKDR6N3KCTCYPQFGDI4LMO}

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	2026-05-18T01:18:25.250352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a9c44a871f376a14c587c0a61a38b63b0b4581cca7ae432ef104503b6b3149f

Aliases

arxiv: 1509.03274 · arxiv_version: 1509.03274v2 · doi: 10.48550/arxiv.1509.03274 · pith_short_12: NKOEJKDR6N3K · pith_short_16: NKOEJKDR6N3KCTCY · pith_short_8: NKOEJKDR

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/NKOEJKDR6N3KCTCYPQFGDI4LMO \
  | 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: 6a9c44a871f376a14c587c0a61a38b63b0b4581cca7ae432ef104503b6b3149f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d51c23125ffe1e40aa66b2056fc4aee2e647f82f737f8a0489a4ca8b0e084e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-09-10T18:57:07Z",
    "title_canon_sha256": "a6558e5f35255bd7e9493298c2fc9d5f6876504cc28defd3215fbb5074206372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03274",
    "kind": "arxiv",
    "version": 2
  }
}