Pith Number

pith:XDE3O6YF

pith:2018:XDE3O6YFJLZAQ7H57A5LDUVAEA

not attested not anchored not stored refs pending

Robust numerical methods for nonlocal (and local) equations of porous medium type. Part II: Schemes and experiments

Espen R. Jakobsen, F\'elix del Teso, J{\o}rgen Endal

arxiv:1804.04985 v2 · 2018-04-13 · math.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDE3O6YFJLZAQ7H57A5LDUVAEA}

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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	2026-05-18T00:03:16.817286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c9b77b054af2087cfdf83ab1d2a02027a5a4b49a479e6e8a98fc71c80d374d

Aliases

arxiv: 1804.04985 · arxiv_version: 1804.04985v2 · doi: 10.48550/arxiv.1804.04985 · pith_short_12: XDE3O6YFJLZA · pith_short_16: XDE3O6YFJLZAQ7H5 · pith_short_8: XDE3O6YF

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/XDE3O6YFJLZAQ7H57A5LDUVAEA \
  | 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: b8c9b77b054af2087cfdf83ab1d2a02027a5a4b49a479e6e8a98fc71c80d374d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ef08a73e6b60e597584ee505d1309f2cdd69393dc419319da867c95cb869bb7",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-13T15:12:40Z",
    "title_canon_sha256": "a6227f8cf5e775ced1a31a33b018a07397aa0aa719cfca96ad87cf4b3370918d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04985",
    "kind": "arxiv",
    "version": 2
  }
}