Pith Number

pith:OJOF3YUI

pith:2011:OJOF3YUIWDHNAFDIGSREQ6OX4Y

not attested not anchored not stored refs pending

Efficient approximation of the solution of certain nonlinear reaction--diffusion equation II: the case of large absorption

Ezequiel Dratman

arxiv:1103.0495 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{OJOF3YUIWDHNAFDIGSREQ6OX4Y}

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	2026-05-18T04:27:34.773554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

725c5de288b0ced0146834a24879d7e62ad047e463f8e55ae14446431b6e688b

Aliases

arxiv: 1103.0495 · arxiv_version: 1103.0495v1 · doi: 10.48550/arxiv.1103.0495 · pith_short_12: OJOF3YUIWDHN · pith_short_16: OJOF3YUIWDHNAFDI · pith_short_8: OJOF3YUI

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/OJOF3YUIWDHNAFDIGSREQ6OX4Y \
  | 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: 725c5de288b0ced0146834a24879d7e62ad047e463f8e55ae14446431b6e688b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f36fb8f255f25f754441dddc170004349d3a2106db49fce345b37f9209afbba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-02T17:30:30Z",
    "title_canon_sha256": "909e9d5363822ab8000adf81de42c1788c1c4ca0ff80cabf8a76b2a9a13f46d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0495",
    "kind": "arxiv",
    "version": 1
  }
}