Pith Number

pith:2WLCILAE

pith:2010:2WLCILAE4ZB72KHVAFAOEQE7L3

not attested not anchored not stored refs pending

Convexity preserving interpolatory subdivision with conic precision

Gudrun Albrecht, Lucia Romani

arxiv:1004.1295 v1 · 2010-04-08 · 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{2WLCILAE4ZB72KHVAFAOEQE7L3}

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	2026-06-03T23:06:35.281595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d596242c04e643fd28f50140e2409f5ec8e69e0a755a98bd1d00eecc69006833

Aliases

arxiv: 1004.1295 · arxiv_version: 1004.1295v1 · doi: 10.48550/arxiv.1004.1295 · pith_short_12: 2WLCILAE4ZB7 · pith_short_16: 2WLCILAE4ZB72KHV · pith_short_8: 2WLCILAE

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/2WLCILAE4ZB72KHVAFAOEQE7L3 \
  | 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: d596242c04e643fd28f50140e2409f5ec8e69e0a755a98bd1d00eecc69006833

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f74818b4d258f108eaec971fd9f99df9af70b18fee9c474cb10e8e0229243fec",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-04-08T10:00:37Z",
    "title_canon_sha256": "e8290b05c49e191cd4a21c71e09b07e83fbb0350b05b7e69203ef4fd8023643d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1295",
    "kind": "arxiv",
    "version": 1
  }
}