Pith Number

pith:5272ZGAB

pith:2015:5272ZGABNGG24JTTJTRHT5GAFU

not attested not anchored not stored refs pending

Rational Chebyshev of Second Kind Collocation Method for Solving a Class of Astrophysics Problems

Kourosh Parand, Sajjad Khaleqi

arxiv:1508.07240 v1 · 2015-08-28 · cs.NA · math.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{5272ZGABNGG24JTTJTRHT5GAFU}

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	2026-05-18T01:13:38.048613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eebfac9801698dae26734ce279f4c02d131f3d7e18e0b66f1c708e40cedaf810

Aliases

arxiv: 1508.07240 · arxiv_version: 1508.07240v1 · doi: 10.48550/arxiv.1508.07240 · pith_short_12: 5272ZGABNGG2 · pith_short_16: 5272ZGABNGG24JTT · pith_short_8: 5272ZGAB

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/5272ZGABNGG24JTTJTRHT5GAFU \
  | 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: eebfac9801698dae26734ce279f4c02d131f3d7e18e0b66f1c708e40cedaf810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "189a43d999e4323879fd35713d3f2fac560cd764d23b53ec5ea5a48a75ae1546",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-08-28T15:18:17Z",
    "title_canon_sha256": "7e45fd6740e3e1f5c1c9de83ba406fb22db18ab430d73767641359b0a8cd5f08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07240",
    "kind": "arxiv",
    "version": 1
  }
}