Pith Number

pith:NO7K4X6E

pith:2018:NO7K4X6E7D3QGLILGAAVVMEQY6

not attested not anchored not stored refs pending

A Family of Second Order Time Stepping Methods for the Darcy-Brinkman Equations

Aytekin \c{C}{\i}b{\i}k, Medine Demir, Songul Kaya

arxiv:1804.02930 v1 · 2018-04-09 · 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{NO7K4X6E7D3QGLILGAAVVMEQY6}

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	2026-05-18T00:18:57.908229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bbeae5fc4f8f7032d0b30015ab090c7826d82e93b68616d79595dab3dbe9ca6

Aliases

arxiv: 1804.02930 · arxiv_version: 1804.02930v1 · doi: 10.48550/arxiv.1804.02930 · pith_short_12: NO7K4X6E7D3Q · pith_short_16: NO7K4X6E7D3QGLIL · pith_short_8: NO7K4X6E

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/NO7K4X6E7D3QGLILGAAVVMEQY6 \
  | 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: 6bbeae5fc4f8f7032d0b30015ab090c7826d82e93b68616d79595dab3dbe9ca6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "131145d62afc671f24d4cc9a3acd16184a20334cb4419a0cd1b980cdb849c599",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-09T11:56:34Z",
    "title_canon_sha256": "1b8316914ee88b95e34bba110fad7f5964a6a2de54a7cefd24f5495e0c8649a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02930",
    "kind": "arxiv",
    "version": 1
  }
}