Pith Number

pith:P4ANTSTR

pith:2012:P4ANTSTRSXHS6BJGDJZP57P332

not attested not anchored not stored refs pending

An ADI extrapolated Crank-Nicolson orthogonal spline collocation method for nonlinear reaction-diffusion systems: a computational study

Graeme Fairweather, Ryan I. Fernandes

arxiv:1202.1005 v1 · 2012-02-05 · 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{P4ANTSTRSXHS6BJGDJZP57P332}

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	2026-05-18T01:58:33.755793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f00d9ca7195cf2f05261a72fefdfbdeaae94060776512b20d96f176bae07a2b

Aliases

arxiv: 1202.1005 · arxiv_version: 1202.1005v1 · doi: 10.48550/arxiv.1202.1005 · pith_short_12: P4ANTSTRSXHS · pith_short_16: P4ANTSTRSXHS6BJG · pith_short_8: P4ANTSTR

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/P4ANTSTRSXHS6BJGDJZP57P332 \
  | 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: 7f00d9ca7195cf2f05261a72fefdfbdeaae94060776512b20d96f176bae07a2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abc757c918d3e61046858d199a2e79b8f188d311b6baeff8ab5e9f9fea5db229",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-02-05T21:11:25Z",
    "title_canon_sha256": "757d96dfd925163fb8f861bf1a28b6475640768dc281bb86ddf29ea47ac0ee4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1005",
    "kind": "arxiv",
    "version": 1
  }
}