Pith Number

pith:BBZWMC4L

pith:2018:BBZWMC4LGYUKHUSXU6NAPCWJPJ

not attested not anchored not stored refs pending

Anisotropy in 2D Discrete Exterior Calculus

Carlos Valero, Humberto Esqueda, Rafael Herrera, Salvador Botello

arxiv:1812.11155 v1 · 2018-12-28 · math.NA · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBZWMC4LGYUKHUSXU6NAPCWJPJ}

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	2026-05-17T23:57:16.232644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0873660b8b3628a3d257a79a078ac97a64e8ea13545c76a8a5503789d225e9bf

Aliases

arxiv: 1812.11155 · arxiv_version: 1812.11155v1 · doi: 10.48550/arxiv.1812.11155 · pith_short_12: BBZWMC4LGYUK · pith_short_16: BBZWMC4LGYUKHUSX · pith_short_8: BBZWMC4L

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/BBZWMC4LGYUKHUSXU6NAPCWJPJ \
  | 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: 0873660b8b3628a3d257a79a078ac97a64e8ea13545c76a8a5503789d225e9bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99574625823fbcf8d0087030d022fe85c5b3edf97506d832f66685c3a8f37166",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-28T18:42:02Z",
    "title_canon_sha256": "d14b661b537c6b3328a9ba68b9d3dd21c9f90d5af9108bd71573b104a8fda257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11155",
    "kind": "arxiv",
    "version": 1
  }
}