Pith Number

pith:NKA63Q2T

pith:2017:NKA63Q2TZXZVQJ7AQY2QJ2UF7V

not attested not anchored not stored refs pending

Variational methods for steady-state Darcy/Fick flow in swollen and poroelastic solids

Tom\'a\v{s} Roub\'i\v{c}ek

arxiv:1703.04850 v1 · 2017-03-15 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NKA63Q2TZXZVQJ7AQY2QJ2UF7V}

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	2026-05-18T00:48:39.101855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a81edc353cdf35827e0863504ea85fd7b74019b21a3632cb8cea1704aca447f

Aliases

arxiv: 1703.04850 · arxiv_version: 1703.04850v1 · doi: 10.48550/arxiv.1703.04850 · pith_short_12: NKA63Q2TZXZV · pith_short_16: NKA63Q2TZXZVQJ7A · pith_short_8: NKA63Q2T

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/NKA63Q2TZXZVQJ7AQY2QJ2UF7V \
  | 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: 6a81edc353cdf35827e0863504ea85fd7b74019b21a3632cb8cea1704aca447f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4976ac1568ad463d7316565b8f6519a22e2faaf15f4cc1ba46243bc721a89c57",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-03-15T00:21:59Z",
    "title_canon_sha256": "2ea58928a9c32209408866254c17080c41e6ed24010208079382d8073451f6d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04850",
    "kind": "arxiv",
    "version": 1
  }
}