Pith Number

pith:ISOB3RUD

pith:2015:ISOB3RUDYE5MKIZHP5ZFCMVT7A

not attested not anchored not stored refs pending

Modified Douglas Splitting Methods for Reaction-Diffusion Equations

A. Arraras, K.J. in't Hout, L. Portero, W. Hundsdorfer

arxiv:1512.01445 v1 · 2015-12-04 · 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{ISOB3RUDYE5MKIZHP5ZFCMVT7A}

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	2026-05-18T01:25:16.849853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

449c1dc683c13ac523277f725132b3f819007d0a8b44930badb81663f5f742be

Aliases

arxiv: 1512.01445 · arxiv_version: 1512.01445v1 · doi: 10.48550/arxiv.1512.01445 · pith_short_12: ISOB3RUDYE5M · pith_short_16: ISOB3RUDYE5MKIZH · pith_short_8: ISOB3RUD

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/ISOB3RUDYE5MKIZHP5ZFCMVT7A \
  | 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: 449c1dc683c13ac523277f725132b3f819007d0a8b44930badb81663f5f742be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11add055ad1b48342482771f2754c0105072ac8125eb5a36023a77e2b573e6ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-12-04T15:07:18Z",
    "title_canon_sha256": "511f7a809525dd6d806f556d0b8b605835e6fca2d261d795b217ef78adf4e96d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01445",
    "kind": "arxiv",
    "version": 1
  }
}