Pith Number

pith:CRAY2WDS

pith:2017:CRAY2WDS26MEHK7WGPRNRTGTDH

not attested not anchored not stored refs pending

Two efficient computational algorithms to solve the singularly perturbed Lane-Emden problem

Amin Ghaderi, Kourosh Parand

arxiv:1708.07384 v1 · 2017-08-23 · 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{CRAY2WDS26MEHK7WGPRNRTGTDH}

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	2026-05-18T00:36:44.481871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14418d5872d79843abf633e2d8ccd319eca0934ac3216a04e82ba03cba981863

Aliases

arxiv: 1708.07384 · arxiv_version: 1708.07384v1 · doi: 10.48550/arxiv.1708.07384 · pith_short_12: CRAY2WDS26ME · pith_short_16: CRAY2WDS26MEHK7W · pith_short_8: CRAY2WDS

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/CRAY2WDS26MEHK7WGPRNRTGTDH \
  | 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: 14418d5872d79843abf633e2d8ccd319eca0934ac3216a04e82ba03cba981863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9766c322cb3d87f98684beaed2393f3c5dcf6b6f971f5251968e55f342aed14e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-23T09:47:01Z",
    "title_canon_sha256": "f51d9d05d85c65389688ec23844dbe533192ccd409890bcfc2c9ca22a79984c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07384",
    "kind": "arxiv",
    "version": 1
  }
}