Pith Number

pith:OV7SS3IO

pith:2009:OV7SS3IOOH5UEHEFW23MPNQIXV

not attested not anchored not stored refs pending

On the upstream mobility scheme for two-phase flow in porous media

J\'er\^ome Jaffr\'e (INRIA Rocquencourt), Siddhartha Mishra (University of Oslo)

arxiv:0901.4032 v1 · 2009-01-26 · cs.NA · math.AP · math.NA · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OV7SS3IOOH5UEHEFW23MPNQIXV}

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	2026-05-18T02:59:30.945763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

757f296d0e71fb421c85b6b6c7b608bd4ab0de03c9705793c629de9223d170ee

Aliases

arxiv: 0901.4032 · arxiv_version: 0901.4032v1 · doi: 10.48550/arxiv.0901.4032 · pith_short_12: OV7SS3IOOH5U · pith_short_16: OV7SS3IOOH5UEHEF · pith_short_8: OV7SS3IO

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/OV7SS3IOOH5UEHEFW23MPNQIXV \
  | 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: 757f296d0e71fb421c85b6b6c7b608bd4ab0de03c9705793c629de9223d170ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d8d812571c2d915a61001c97b2dd61fe6ca4590a116e770dd009060b66c48fb",
    "cross_cats_sorted": [
      "math.AP",
      "math.NA",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2009-01-26T15:55:22Z",
    "title_canon_sha256": "88fd815466c4c173b325f19a7294b48613b44667d75506e4c3c6722670bb455a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4032",
    "kind": "arxiv",
    "version": 1
  }
}