Pith Number

pith:GKQ3VJ4U

pith:2026:GKQ3VJ4UZ266LEE6P4KJIO6XVO

not attested not anchored not stored refs pending

Hamilton--Jacobi Reachability for Spacecraft Collision Avoidance

Jianshu Zhou, Jordan Kam, Larry Hui, William Su

arxiv:2605.20138 v1 · 2026-05-19 · cs.RO · cs.SY · eess.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{GKQ3VJ4UZ266LEE6P4KJIO6XVO}

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	2026-05-20T02:06:03.770796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32a1baa794cebde5909e7f14943bd7abb94a30d2e92bd384cdf1d5a4cbb8c8af

Aliases

arxiv: 2605.20138 · arxiv_version: 2605.20138v1 · doi: 10.48550/arxiv.2605.20138 · pith_short_12: GKQ3VJ4UZ266 · pith_short_16: GKQ3VJ4UZ266LEE6 · pith_short_8: GKQ3VJ4U

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/GKQ3VJ4UZ266LEE6P4KJIO6XVO \
  | 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: 32a1baa794cebde5909e7f14943bd7abb94a30d2e92bd384cdf1d5a4cbb8c8af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "661ed2cd4459df0f1b2ef86b26d5685715b2d0e5688e41de972e80211a84b8be",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-05-19T17:22:16Z",
    "title_canon_sha256": "cbdf2a58ed92eb1e72ba48e4890b46bac19cd2723e67a7c0253f9b31dae5c151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20138",
    "kind": "arxiv",
    "version": 1
  }
}