Pith Number

pith:EH27W3CF

pith:2025:EH27W3CF5B7SP2VFMOPCPJ2OPN

not attested not anchored not stored refs pending

Improved Directional State Transition Tensors for Accurate Aerocapture Performance Analysis

David C. Woffinden, Grace E. Calkins, Jay W. McMahon

arxiv:2512.12475 v2 · 2025-12-13 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EH27W3CF5B7SP2VFMOPCPJ2OPN}

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	2026-05-26T01:02:29.923621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21f5fb6c45e87f27eaa5639e27a74e7b46e0f3139dac600b9b029327dc1bf03a

Aliases

arxiv: 2512.12475 · arxiv_version: 2512.12475v2 · doi: 10.48550/arxiv.2512.12475 · pith_short_12: EH27W3CF5B7S · pith_short_16: EH27W3CF5B7SP2VF · pith_short_8: EH27W3CF

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/EH27W3CF5B7SP2VFMOPCPJ2OPN \
  | 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: 21f5fb6c45e87f27eaa5639e27a74e7b46e0f3139dac600b9b029327dc1bf03a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcff84598c89fc813e91bfeb5e5b3cb01d9b589976e4e299b1d33eb249fd1a7f",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2025-12-13T22:19:34Z",
    "title_canon_sha256": "dc268bfd1572733cd5d99457b144be9013c94edceb6bf153dbbfe84e4950894e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.12475",
    "kind": "arxiv",
    "version": 2
  }
}