Pith Number

pith:3CWU4CL6

pith:2026:3CWU4CL6GLP64R7H23P4WLKZXS

not attested not anchored not stored refs pending

Composite B-Spline Current Deposition and Interpolation Operators for Thin-Wire Finite-Difference Time-Domain Simulations

Boyce E. Griffith, Cole Gruninger

arxiv:2605.21450 v1 · 2026-05-20 · math.NA · cs.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{3CWU4CL6GLP64R7H23P4WLKZXS}

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	2026-05-21T02:05:37.737066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8ad4e097e32dfee47e7d6dfcb2d59bc9389faf92c5ef0812d6db6ddc11aaa5b

Aliases

arxiv: 2605.21450 · arxiv_version: 2605.21450v1 · doi: 10.48550/arxiv.2605.21450 · pith_short_12: 3CWU4CL6GLP6 · pith_short_16: 3CWU4CL6GLP64R7H · pith_short_8: 3CWU4CL6

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/3CWU4CL6GLP64R7H23P4WLKZXS \
  | 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: d8ad4e097e32dfee47e7d6dfcb2d59bc9389faf92c5ef0812d6db6ddc11aaa5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "494afc2ddd8f01e6f6a137b326967e6e704c4e1a2d8cf443c401e1650b8a0c69",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-20T17:40:32Z",
    "title_canon_sha256": "c671029ee25b7b5f13e6a2883799b23080e056ad0f34ac5dfd42cbc02bc397c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21450",
    "kind": "arxiv",
    "version": 1
  }
}