Pith Number

pith:SIZUJ5J6

pith:2026:SIZUJ5J6ZMGZZ6VT2QJBG7QXNG

not attested not anchored not stored refs pending

Tracking the Effective Surface Area of Non-Convex Satellites

Alessio Bocci, Jan Tommy Gravdahl, Lauritz Rismark Fosso, Raymond Kristiansen, Sveinung Johan Ohrem

arxiv:2606.09439 v1 · 2026-06-08 · 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{SIZUJ5J6ZMGZZ6VT2QJBG7QXNG}

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	2026-06-09T02:08:48.584925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

923344f53ecb0d9cfab3d412137e17698a0910a25e4c2cf15eee0e669e3e673b

Aliases

arxiv: 2606.09439 · arxiv_version: 2606.09439v1 · doi: 10.48550/arxiv.2606.09439 · pith_short_12: SIZUJ5J6ZMGZ · pith_short_16: SIZUJ5J6ZMGZZ6VT · pith_short_8: SIZUJ5J6

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/SIZUJ5J6ZMGZZ6VT2QJBG7QXNG \
  | 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: 923344f53ecb0d9cfab3d412137e17698a0910a25e4c2cf15eee0e669e3e673b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c58eae74d96a06349d4d40e4060d39e2c95deffece122a34dac8deed8c66770",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-06-08T12:48:38Z",
    "title_canon_sha256": "f101574f7f066051346824184e4e0dac93dfdb70e5310ad0bfb4e9e60a8bac58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09439",
    "kind": "arxiv",
    "version": 1
  }
}