Pith Number

pith:4Y3P5V7N

pith:2019:4Y3P5V7NFECXZJ2P6SRIWFY5J7

not attested not anchored not stored refs pending

A study on Stokes-Brinkman dimensionless model for flow in porous media

Anna Caroline Felix Santos de Jesus

arxiv:1906.12166 v1 · 2019-06-27 · cs.CE · cs.NA · 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{4Y3P5V7NFECXZJ2P6SRIWFY5J7}

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	2026-05-17T23:41:59.107178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e636fed7ed29057ca74ff4a28b171d4fe9f0de49596b893d7d0caaaa23ea56ec

Aliases

arxiv: 1906.12166 · arxiv_version: 1906.12166v1 · doi: 10.48550/arxiv.1906.12166 · pith_short_12: 4Y3P5V7NFECX · pith_short_16: 4Y3P5V7NFECXZJ2P · pith_short_8: 4Y3P5V7N

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/4Y3P5V7NFECXZJ2P6SRIWFY5J7 \
  | 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: e636fed7ed29057ca74ff4a28b171d4fe9f0de49596b893d7d0caaaa23ea56ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c49bddeb8901f63c6328a56476c1d0cdc15479cf2c9ddcc66dbc54d48a23198",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2019-06-27T00:02:09Z",
    "title_canon_sha256": "07dd6297a30deb0117bc27905702a1ab718329de15953f80a78df02dfa795e10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.12166",
    "kind": "arxiv",
    "version": 1
  }
}