Pith Number

pith:LBJI33SE

pith:2009:LBJI33SEQUZHICCQ2WLLDUMWHK

not attested not anchored not stored refs pending

Estimating nonlinearities in twophase flow in porous media

CEREMADE), Guy Chavent (INRIA Rocquencourt, J\'er\^ome Jaffr\'e (INRIA Rocquencourt), Jianfeng Zhang

arxiv:0904.1534 v1 · 2009-04-09 · cs.NA · math.AP · 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{LBJI33SEQUZHICCQ2WLLDUMWHK}

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	2026-05-18T02:59:30.927045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58528dee448532740850d596b1d1963ab28f9ce3c7c17afe60a9f153ccbca072

Aliases

arxiv: 0904.1534 · arxiv_version: 0904.1534v1 · doi: 10.48550/arxiv.0904.1534 · pith_short_12: LBJI33SEQUZH · pith_short_16: LBJI33SEQUZHICCQ · pith_short_8: LBJI33SE

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/LBJI33SEQUZHICCQ2WLLDUMWHK \
  | 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: 58528dee448532740850d596b1d1963ab28f9ce3c7c17afe60a9f153ccbca072

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19c0bb343a121ffb92d5aeab3687100eb009a6fa5f3f9f36a37a087c6af439ba",
    "cross_cats_sorted": [
      "math.AP",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2009-04-09T14:03:59Z",
    "title_canon_sha256": "476db79dcb89f9a7637a3a9e3d4d8dbaac0dc4d483a889f2ea658b2c99876925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1534",
    "kind": "arxiv",
    "version": 1
  }
}