Pith Number

pith:OCR5UWT7

pith:2019:OCR5UWT7U655555QD2H2HP2EQ7

not attested not anchored not stored refs pending

A non-iterative method for robustly computing the intersections between a line and a curve or surface

Fehmi Cirak, Laurent Buse, Xiao Xiao

arxiv:1902.01814 v2 · 2019-02-05 · math.NA · cs.CG · cs.NA · 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{OCR5UWT7U655555QD2H2HP2EQ7}

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	2026-07-05T01:49:34.505242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70a3da5a7fa7bbdef7b01e8fa3bf4487dad00b3e7e139b9c1b3bfc973a506da5

Aliases

arxiv: 1902.01814 · arxiv_version: 1902.01814v2 · doi: 10.48550/arxiv.1902.01814 · pith_short_12: OCR5UWT7U655 · pith_short_16: OCR5UWT7U655555Q · pith_short_8: OCR5UWT7

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/OCR5UWT7U655555QD2H2HP2EQ7 \
  | 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: 70a3da5a7fa7bbdef7b01e8fa3bf4487dad00b3e7e139b9c1b3bfc973a506da5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd35b97566931a72fceb4932c4b2c04ef6ef25e5973f8756c32ecd9d6dc67166",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.NA",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-05T17:39:31Z",
    "title_canon_sha256": "dd0042ecfb5cdfd667550a21090359f59cc185e3dcc8d37f1aae1ff71f1c507d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01814",
    "kind": "arxiv",
    "version": 2
  }
}