Pith Number

pith:52Z4WDJG

pith:2016:52Z4WDJG2FK2POAJGYTTHOCMDZ

not attested not anchored not stored refs pending

Immersed Boundary Smooth Extension (IBSE): A high-order method for solving incompressible flows in arbitrary smooth domains

Becca Thomases, David B. Stein, Robert D. Guy

arxiv:1609.03851 v1 · 2016-09-13 · 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{52Z4WDJG2FK2POAJGYTTHOCMDZ}

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	2026-05-18T00:49:15.680416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeb3cb0d26d155a7b809362733b84c1e544284924f41b2187403b5b817608ae0

Aliases

arxiv: 1609.03851 · arxiv_version: 1609.03851v1 · doi: 10.48550/arxiv.1609.03851 · pith_short_12: 52Z4WDJG2FK2 · pith_short_16: 52Z4WDJG2FK2POAJ · pith_short_8: 52Z4WDJG

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/52Z4WDJG2FK2POAJGYTTHOCMDZ \
  | 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: eeb3cb0d26d155a7b809362733b84c1e544284924f41b2187403b5b817608ae0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d25c7ea46b65db7f1131ce3ba1ad5c2d2799810186b6e7428d64db686e1b3a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-09-13T14:22:36Z",
    "title_canon_sha256": "644b002a68907454964130fe481bb84d93f448534a4274b7cd9380ceafe4862a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03851",
    "kind": "arxiv",
    "version": 1
  }
}