Pith Number

pith:36O2KC4J

pith:2011:36O2KC4JD43YDJIMY3BQS7JV5H

not attested not anchored not stored refs pending

Efficient approximation of the solution of certain nonlinear reaction--diffusion equation I: the case of small absorption

Ezequiel Dratman

arxiv:1103.0491 v1 · 2011-03-02 · 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{36O2KC4JD43YDJIMY3BQS7JV5H}

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	2026-05-18T04:27:34.781564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df9da50b891f3781a50cc6c3097d35e9e2e03538be6dddf538728543c36219d1

Aliases

arxiv: 1103.0491 · arxiv_version: 1103.0491v1 · doi: 10.48550/arxiv.1103.0491 · pith_short_12: 36O2KC4JD43Y · pith_short_16: 36O2KC4JD43YDJIM · pith_short_8: 36O2KC4J

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/36O2KC4JD43YDJIMY3BQS7JV5H \
  | 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: df9da50b891f3781a50cc6c3097d35e9e2e03538be6dddf538728543c36219d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a3bf1ca2cef94c6be4c6642bef2008d7f1239063b5be4c0c451722a626ea0f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-02T17:21:32Z",
    "title_canon_sha256": "366eeb6a6abd1166e5bc1934d4f1827ecb13e95e66b2389e5df61b7447153fe0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0491",
    "kind": "arxiv",
    "version": 1
  }
}