Pith Number

pith:P77A5Q6O

pith:2019:P77A5Q6OAPD26ZCGNXRFA2VPND

not attested not anchored not stored refs pending

Lagrange2D: A Mathematica package for Lagrangian analysis of two-dimensional fluid flows

William Gilpin

arxiv:1908.00717 v1 · 2019-08-02 · physics.flu-dyn · 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{P77A5Q6OAPD26ZCGNXRFA2VPND}

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	2026-07-04T23:51:08.867347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ffe0ec3ce03c7af64466de2506aaf68ea17ee5dd4a45292d19649cda164ef08

Aliases

arxiv: 1908.00717 · arxiv_version: 1908.00717v1 · doi: 10.48550/arxiv.1908.00717 · pith_short_12: P77A5Q6OAPD2 · pith_short_16: P77A5Q6OAPD26ZCG · pith_short_8: P77A5Q6O

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/P77A5Q6OAPD26ZCGNXRFA2VPND \
  | 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: 7ffe0ec3ce03c7af64466de2506aaf68ea17ee5dd4a45292d19649cda164ef08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3dce1f9102682c8da7be8634a5435b0718a5cae8af60688b7f45366194b3d5d",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2019-08-02T06:34:11Z",
    "title_canon_sha256": "8645dce886b3f7ffc733a42907f3c02def9db45b95db4478932aeb60c9938daa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00717",
    "kind": "arxiv",
    "version": 1
  }
}