Pith Number

pith:SKQAAVFC

pith:2008:SKQAAVFC7X4G72Q42PBS7QCK55

not attested not anchored not stored refs pending

Incompressible flow in porous media with fractional diffusion

A. Castro, D. Cordoba, F. Gancedo, R. Orive

arxiv:0806.1180 v1 · 2008-06-06 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SKQAAVFC7X4G72Q42PBS7QCK55}

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	2026-05-18T02:15:51.857621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92a00054a2fdf86fea1cd3c32fc04aef5400074dfb1602135c0a056a4b8b7557

Aliases

arxiv: 0806.1180 · arxiv_version: 0806.1180v1 · doi: 10.48550/arxiv.0806.1180 · pith_short_12: SKQAAVFC7X4G · pith_short_16: SKQAAVFC7X4G72Q4 · pith_short_8: SKQAAVFC

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/SKQAAVFC7X4G72Q42PBS7QCK55 \
  | 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: 92a00054a2fdf86fea1cd3c32fc04aef5400074dfb1602135c0a056a4b8b7557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1552a28531ca4eaf65bf3ee23aca5bdb8d76131782b86001de555459ac19e7e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2008-06-06T14:55:50Z",
    "title_canon_sha256": "b9a77aaa273a901619ba313e585b7ba2c392ac4874a374366e3d77af8d958ffe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.1180",
    "kind": "arxiv",
    "version": 1
  }
}