Pith Number

pith:SANGFIRY

pith:2018:SANGFIRYUTCPWNGTVJEYG7HJ75

not attested not anchored not stored refs pending

Linear-time geometric algorithm for evaluating B\'ezier curves

Filip Chudy, Pawe{\l} Wo\'zny

arxiv:1803.06843 v4 · 2018-03-19 · cs.NA · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SANGFIRYUTCPWNGTVJEYG7HJ75}

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	2026-05-17T23:42:58.994228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901a62a238a4c4fb34d3aa49837ce9ff658f30d3e3d3d2530c561674d9b6995c

Aliases

arxiv: 1803.06843 · arxiv_version: 1803.06843v4 · doi: 10.48550/arxiv.1803.06843 · pith_short_12: SANGFIRYUTCP · pith_short_16: SANGFIRYUTCPWNGT · pith_short_8: SANGFIRY

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/SANGFIRYUTCPWNGTVJEYG7HJ75 \
  | 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: 901a62a238a4c4fb34d3aa49837ce9ff658f30d3e3d3d2530c561674d9b6995c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9b3ce7ecaf11f7324030fcad00792f91ec9f14d0bbda5f293c6305b1b425ef",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-03-19T09:36:36Z",
    "title_canon_sha256": "e26fab8ede9b51d56843f88f33c217e22c51f4fecfa71db892d758abb1c9b823"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06843",
    "kind": "arxiv",
    "version": 4
  }
}