Pith Number

pith:7RGYWIGM

pith:2018:7RGYWIGMSH4Q5JKYA26MJX2ZY6

not attested not anchored not stored refs pending

Techniques for modeling a high-quality B-spline curves by S-polygons in a float format

Albert Mardanov, Rifkat Nabiyev, Rushan Ziatdinov, Rustam Akhmetshin, Valerijan Muftejev

arxiv:1812.04223 v1 · 2018-12-11 · 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{7RGYWIGMSH4Q5JKYA26MJX2ZY6}

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	2026-05-17T23:58:32.965885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4d8b20cc91f90ea55806bcc4df59c79eeafec07fc5e2ec132ee9c24f722dab

Aliases

arxiv: 1812.04223 · arxiv_version: 1812.04223v1 · doi: 10.48550/arxiv.1812.04223 · pith_short_12: 7RGYWIGMSH4Q · pith_short_16: 7RGYWIGMSH4Q5JKY · pith_short_8: 7RGYWIGM

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/7RGYWIGMSH4Q5JKYA26MJX2ZY6 \
  | 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: fc4d8b20cc91f90ea55806bcc4df59c79eeafec07fc5e2ec132ee9c24f722dab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "add1aa7717ac1860a79dcff22f2b0895dfa16504a260ad9eaa224fdf32c534ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2018-12-11T05:23:37Z",
    "title_canon_sha256": "044a3ef19d248894ec1b12e313e46ab8c66201750932ab6fa0033c25822db57c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04223",
    "kind": "arxiv",
    "version": 1
  }
}