Pith Number

pith:HSJBJ4D5

pith:2009:HSJBJ4D5BUD55UCLHZMFX3XVCL

not attested not anchored not stored refs pending

A simple convergent solver for initial value problems

Francisco Dominguez Mota, Rafael G. Campos

arxiv:0907.0693 v1 · 2009-07-03 · math.NA · cs.NA · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HSJBJ4D5BUD55UCLHZMFX3XVCL}

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	2026-06-03T23:06:27.554689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c9214f07d0d07ded04b3e585beef512fc08193ad46de5c2578d17a13a17c077

Aliases

arxiv: 0907.0693 · arxiv_version: 0907.0693v1 · doi: 10.48550/arxiv.0907.0693 · pith_short_12: HSJBJ4D5BUD5 · pith_short_16: HSJBJ4D5BUD55UCL · pith_short_8: HSJBJ4D5

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/HSJBJ4D5BUD55UCLHZMFX3XVCL \
  | 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: 3c9214f07d0d07ded04b3e585beef512fc08193ad46de5c2578d17a13a17c077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4160fa9e30e68d79377ca884caf259b4c28cbf62b191ede401abde8c63300aa",
    "cross_cats_sorted": [
      "cs.NA",
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-07-03T18:43:27Z",
    "title_canon_sha256": "2987ce81b7ce69b4cae53a696e461247e869a4d7d0765a9e24d9b71140b14c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0693",
    "kind": "arxiv",
    "version": 1
  }
}