Pith Number

pith:XKCQ5VVT

pith:2018:XKCQ5VVT5G2WRFE2BET6KOOKCK

not attested not anchored not stored refs pending

Free LSD: Prior-Free Visual Landing Site Detection for Autonomous Planes

Cesar Cadena, Igor Gilitschenski, Roland Siegwart, Thomas Stastny, Timo Hinzmann

arxiv:1802.09043 v1 · 2018-02-25 · 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{XKCQ5VVT5G2WRFE2BET6KOOKCK}

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	2026-05-18T00:22:35.679214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba850ed6b3e9b568949a0927e539ca1291857da03407cdf33db5a79eae06c738

Aliases

arxiv: 1802.09043 · arxiv_version: 1802.09043v1 · doi: 10.48550/arxiv.1802.09043 · pith_short_12: XKCQ5VVT5G2W · pith_short_16: XKCQ5VVT5G2WRFE2 · pith_short_8: XKCQ5VVT

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/XKCQ5VVT5G2WRFE2BET6KOOKCK \
  | 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: ba850ed6b3e9b568949a0927e539ca1291857da03407cdf33db5a79eae06c738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a4e7c4ea69a0f8ee20610caa5175a62f3fe3969601dd7b0bf0503f68d86d3ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2018-02-25T17:00:54Z",
    "title_canon_sha256": "271abfe4408bde7194eb276a30e8818828d723f343b88699b043d49e6990f86c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09043",
    "kind": "arxiv",
    "version": 1
  }
}