Pith Number

pith:KUYUCFSG

pith:2018:KUYUCFSGD2LUXVLAB74CUZDXLQ

not attested not anchored not stored refs pending

Optimal Solution of Linear Ordinary Differential Equations by Conjugate Gradient Method

Robert M. Corless, Wenqiang Yang, Wenyuan Wu

arxiv:1805.01085 v2 · 2018-05-03 · 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{KUYUCFSGD2LUXVLAB74CUZDXLQ}

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	2026-05-18T00:15:36.199485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55314116461e974bd5600ff82a64775c189833b9598919ed65eada24d09a9aa0

Aliases

arxiv: 1805.01085 · arxiv_version: 1805.01085v2 · doi: 10.48550/arxiv.1805.01085 · pith_short_12: KUYUCFSGD2LU · pith_short_16: KUYUCFSGD2LUXVLA · pith_short_8: KUYUCFSG

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/KUYUCFSGD2LUXVLAB74CUZDXLQ \
  | 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: 55314116461e974bd5600ff82a64775c189833b9598919ed65eada24d09a9aa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aa83e9996d2afc9ee7c7f893af1e698cc80234ce41900c226c424680bf50eb5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-03T02:10:35Z",
    "title_canon_sha256": "7a6e62affa5eec2d7eb51e0f0fc050a9fd964ebca0c7b53d17fbffad351d0dbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01085",
    "kind": "arxiv",
    "version": 2
  }
}