Pith Number

pith:OBKO5HVM

pith:2019:OBKO5HVMGR4MESHH74V6NPOYJY

not attested not anchored not stored refs pending

Rapid Collision Detection for Multicopter Trajectories

Mark W. Mueller, Nathan Bucki

arxiv:1904.04223 v2 · 2019-04-08 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBKO5HVMGR4MESHH74V6NPOYJY}

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	2026-05-17T23:40:10.986450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7054ee9eac3478c248e7ff2be6bdd84e25cc482e994c0e57f3e77a20aa272cf1

Aliases

arxiv: 1904.04223 · arxiv_version: 1904.04223v2 · doi: 10.48550/arxiv.1904.04223 · pith_short_12: OBKO5HVMGR4M · pith_short_16: OBKO5HVMGR4MESHH · pith_short_8: OBKO5HVM

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/OBKO5HVMGR4MESHH74V6NPOYJY \
  | 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: 7054ee9eac3478c248e7ff2be6bdd84e25cc482e994c0e57f3e77a20aa272cf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da03f6193e44651d402ddf7b1827f6d79a57d503734c97179f88792504b44cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2019-04-08T17:45:54Z",
    "title_canon_sha256": "f5dfbe4532f19d0adceeb8fd7f421491a82f9bdb5890bf8fd4b9bd2295dce4ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04223",
    "kind": "arxiv",
    "version": 2
  }
}