Pith Number

pith:BGUZREFZ

pith:2026:BGUZREFZVO6OAOQHUDO46USSZE

not attested not anchored not stored refs pending

A C++ implementation of the G-Scheme stiff ODE solver with multi-resolution sparse hash-table kernel lookup

Mauro Valorani, Riccardo Malpica Galassi

arxiv:2607.14918 v1 · 2026-07-16 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGUZREFZVO6OAOQHUDO46USSZE}

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	2026-07-17T01:21:58.729726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09a99890b9abbce03a07a0ddcf5252c920b3491e96b55e4ed824fed4e25b1e3b

Aliases

arxiv: 2607.14918 · arxiv_version: 2607.14918v1 · doi: 10.48550/arxiv.2607.14918 · pith_short_12: BGUZREFZVO6O · pith_short_16: BGUZREFZVO6OAOQH · pith_short_8: BGUZREFZ

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/BGUZREFZVO6OAOQHUDO46USSZE \
  | 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: 09a99890b9abbce03a07a0ddcf5252c920b3491e96b55e4ed824fed4e25b1e3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7c1bce07a0d319ed8dd87007b287fe6f9b3644ec73491014e440fee5ad8ceeb",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2026-07-16T12:36:48Z",
    "title_canon_sha256": "ae0faa0ab1762fbd151a5f705c0fe8b911b8d9ad89875b6770ce5d7d81a7b9d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14918",
    "kind": "arxiv",
    "version": 1
  }
}