Pith Number

pith:EZC4AE3P

pith:2014:EZC4AE3P4TEI67RD4ES2SXVAVM

not attested not anchored not stored refs pending

Numerical solution of steady-state groundwater flow and solute transport problems: Discontinuous Galerkin based methods compared to the Streamline Diffusion approach

A.Q.T. Ngo, O. Ippisch, P. Bastian

arxiv:1411.1432 v1 · 2014-11-05 · math.NA · cs.DC · cs.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{EZC4AE3P4TEI67RD4ES2SXVAVM}

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	2026-06-04T16:08:55.449393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2645c0136fe4c88f7e23e125a95ea0ab0bd3d4a0b6d46a06fd7d4d7d119be4ca

Aliases

arxiv: 1411.1432 · arxiv_version: 1411.1432v1 · doi: 10.48550/arxiv.1411.1432 · pith_short_12: EZC4AE3P4TEI · pith_short_16: EZC4AE3P4TEI67RD · pith_short_8: EZC4AE3P

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/EZC4AE3P4TEI67RD4ES2SXVAVM \
  | 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: 2645c0136fe4c88f7e23e125a95ea0ab0bd3d4a0b6d46a06fd7d4d7d119be4ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef7f09086984b7b4a6a05b5c103925ba8d4ec0af7166d5c5b0932d9f35e77811",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-11-05T22:24:12Z",
    "title_canon_sha256": "54fb5c3e166377ef1f932c42f8704676d7c274992c80a260070c1241cea7e8ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1432",
    "kind": "arxiv",
    "version": 1
  }
}