Pith Number

pith:XRT66D53

pith:2020:XRT66D53DRE46Q5ZQOMH3V5U2F

not attested not anchored not stored refs pending

fenicsR13: A Tensorial Mixed Finite Element Solver for the Linear R13 Equations Using the FEniCS Computing Platform

Lambert Theisen, Manuel Torrilhon

arxiv:2007.05944 v2 · 2020-07-12 · cs.CE · cs.MS · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XRT66D53DRE46Q5ZQOMH3V5U2F}

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	2026-07-05T02:34:40.647052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc67ef0fbb1c49cf43b983987dd7b4d15258c7066f689510155a46c7ce9ad44d

Aliases

arxiv: 2007.05944 · arxiv_version: 2007.05944v2 · doi: 10.48550/arxiv.2007.05944 · pith_short_12: XRT66D53DRE4 · pith_short_16: XRT66D53DRE46Q5Z · pith_short_8: XRT66D53

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/XRT66D53DRE46Q5ZQOMH3V5U2F \
  | 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: bc67ef0fbb1c49cf43b983987dd7b4d15258c7066f689510155a46c7ce9ad44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1d9bb2297d56051525a9b8ce57cb85ae4fd1fb53e1a556a5c86acc5ca7840b6",
    "cross_cats_sorted": [
      "cs.MS",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2020-07-12T09:07:24Z",
    "title_canon_sha256": "6308af931a633c1e5b9005c2701bcd33e6cbad5c66e8bfaca690af5024f70016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.05944",
    "kind": "arxiv",
    "version": 2
  }
}