Pith Number

pith:A7UHYA2D

pith:2012:A7UHYA2DAWV65P32KDF364GAWF

not attested not anchored not stored refs pending

Computational Modeling of Dynamical Systems

Anders Logg, Claes Johnson, Johan Jansson

arxiv:1205.2809 v1 · 2012-05-12 · 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{A7UHYA2DAWV65P32KDF364GAWF}

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	2026-05-18T03:55:45.942044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07e87c034305abeebf7a50cbbf70c0b16b4f47f5f1e9ce69af01cb853938f380

Aliases

arxiv: 1205.2809 · arxiv_version: 1205.2809v1 · doi: 10.48550/arxiv.1205.2809 · pith_short_12: A7UHYA2DAWV6 · pith_short_16: A7UHYA2DAWV65P32 · pith_short_8: A7UHYA2D

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/A7UHYA2DAWV65P32KDF364GAWF \
  | 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: 07e87c034305abeebf7a50cbbf70c0b16b4f47f5f1e9ce69af01cb853938f380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd51f7d0fcdf2edb861c2a26dc8ffa8a9c878f4f73fa82844420b0dcba35a201",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-12T18:58:47Z",
    "title_canon_sha256": "c4f220242c5e11ffd99f5b76edec743ee1ae5823276644daf45b1e57b59c16a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2809",
    "kind": "arxiv",
    "version": 1
  }
}