Pith Number

pith:DRN3SR4L

pith:2018:DRN3SR4L4P3XZETPXEQSQLSGYY

not attested not anchored not stored refs pending

Project Artie: An Artificial Student for Disciplines Informed by Partial Differential Equations

Anthony T Patera

arxiv:1809.06637 v1 · 2018-09-18 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRN3SR4L4P3XZETPXEQSQLSGYY}

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	2026-05-18T00:05:25.112740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c5bb9478be3f77c926fb921282e46c62efd3ae663e6796d6cfd520113a23a96

Aliases

arxiv: 1809.06637 · arxiv_version: 1809.06637v1 · doi: 10.48550/arxiv.1809.06637 · pith_short_12: DRN3SR4L4P3X · pith_short_16: DRN3SR4L4P3XZETP · pith_short_8: DRN3SR4L

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/DRN3SR4L4P3XZETPXEQSQLSGYY \
  | 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: 1c5bb9478be3f77c926fb921282e46c62efd3ae663e6796d6cfd520113a23a96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "006733853789e4d87c3bde8243412742feab9f87224e4482cbe2f637dd201dee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-18T10:54:26Z",
    "title_canon_sha256": "642b08494b90f2e24482ac6d975612a7c37d7cf571f53edf08f8e1c8647b3ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06637",
    "kind": "arxiv",
    "version": 1
  }
}