Pith Number

pith:NUDGA64Z

pith:2019:NUDGA64ZD7QXBSANHLHPDEBDYV

not attested not anchored not stored refs pending

The Open Porous Media Flow Reservoir Simulator

Alf Birger Rustad, Andreas Lauser, Andreas Thune, Atgeirr Fl{\o} Rasmussen, B{\aa}rd Skaflestad, Joakim Hove, Kai Bao, Knut-Andreas Lie, Markus Blatt, Ove S{\ae}vareid, Robert Kl\"ofkorn, Tor Harald Sandve

arxiv:1910.06059 v1 · 2019-10-04 · cs.OH · physics.comp-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{NUDGA64ZD7QXBSANHLHPDEBDYV}

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	2026-07-05T00:11:43.835757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d06607b991fe170c80d3acef19023c56e129754e1daef996361ca1c01c0f629

Aliases

arxiv: 1910.06059 · arxiv_version: 1910.06059v1 · doi: 10.48550/arxiv.1910.06059 · pith_short_12: NUDGA64ZD7QX · pith_short_16: NUDGA64ZD7QXBSAN · pith_short_8: NUDGA64Z

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/NUDGA64ZD7QXBSANHLHPDEBDYV \
  | 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: 6d06607b991fe170c80d3acef19023c56e129754e1daef996361ca1c01c0f629

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f53e894f434ee64fcfb1a4a7a8837f14a1f78304985b30af081a52f3082bc78",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2019-10-04T09:31:52Z",
    "title_canon_sha256": "0433e33d5debd8f30b42646692a2438db2672b1ae61b5e3280daa02d8e0f4215"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.06059",
    "kind": "arxiv",
    "version": 1
  }
}