Pith Number

pith:T2GB7UCR

pith:2013:T2GB7UCRRAR5FL7CPVUSKLGJRR

not attested not anchored not stored refs pending

Geometric multigrid for an implicit-time immersed boundary method

Bobby Philip, Boyce E. Griffith, Robert D. Guy

arxiv:1311.5614 v2 · 2013-11-21 · 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{T2GB7UCRRAR5FL7CPVUSKLGJRR}

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	2026-05-18T00:47:00.020437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e8c1fd0518823d2afe27d69252cc98c51d9a109969670cfd23a1a31fa70b957

Aliases

arxiv: 1311.5614 · arxiv_version: 1311.5614v2 · doi: 10.48550/arxiv.1311.5614 · pith_short_12: T2GB7UCRRAR5 · pith_short_16: T2GB7UCRRAR5FL7C · pith_short_8: T2GB7UCR

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/T2GB7UCRRAR5FL7CPVUSKLGJRR \
  | 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: 9e8c1fd0518823d2afe27d69252cc98c51d9a109969670cfd23a1a31fa70b957

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ae5fc57c9be30459ddb8a5dfa586483299475374c43359265f653ccfa5ec77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-21T23:08:25Z",
    "title_canon_sha256": "530ead9fba93538f921ba1ca6aaa8cdb00dadc909eb424448296f54a9adbe9f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5614",
    "kind": "arxiv",
    "version": 2
  }
}