Pith Number

pith:PU7EP3AV

pith:2012:PU7EP3AVTXJGESXK24HGVUM7OD

not attested not anchored not stored refs pending

Strong coupling of finite element methods for the Stokes-Darcy problem

Antonio M\'arquez, Francisco-Javier Sayas, Salim Meddahi

arxiv:1203.4717 v1 · 2012-03-21 · 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{PU7EP3AVTXJGESXK24HGVUM7OD}

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	2026-05-18T03:59:37.381569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3e47ec159dd2624aead70e6ad19f70da1d1275cee08035a404e6a5ff95807f

Aliases

arxiv: 1203.4717 · arxiv_version: 1203.4717v1 · doi: 10.48550/arxiv.1203.4717 · pith_short_12: PU7EP3AVTXJG · pith_short_16: PU7EP3AVTXJGESXK · pith_short_8: PU7EP3AV

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/PU7EP3AVTXJGESXK24HGVUM7OD \
  | 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: 7d3e47ec159dd2624aead70e6ad19f70da1d1275cee08035a404e6a5ff95807f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509ce456ab0462bf8b2f63551fdb1e9aca0c7d8197a21e6ac4c48119850b3bc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-03-21T11:59:13Z",
    "title_canon_sha256": "a60526a3461c8ddbf2878152be1725dc3b09ddcd4edd7c64d3107d7c4381fe51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4717",
    "kind": "arxiv",
    "version": 1
  }
}