Pith Number

pith:CZK6ARMF

pith:2021:CZK6ARMF42D4DYTMV6WCIKNPE6

not attested not anchored not stored refs pending

Image Segmentation to Identify Safe Landing Zones for Unmanned Aerial Vehicles

Alan F. Smeaton, Joe Kinahan

arxiv:2111.14557 v1 · 2021-11-29 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZK6ARMF42D4DYTMV6WCIKNPE6}

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	2026-07-05T04:03:57.917970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1655e04585e687c1e26cafac2429af278dd3f76ed8d46bbc436c5f4e5ce1151c

Aliases

arxiv: 2111.14557 · arxiv_version: 2111.14557v1 · doi: 10.48550/arxiv.2111.14557 · pith_short_12: CZK6ARMF42D4 · pith_short_16: CZK6ARMF42D4DYTM · pith_short_8: CZK6ARMF

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/CZK6ARMF42D4DYTMV6WCIKNPE6 \
  | 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: 1655e04585e687c1e26cafac2429af278dd3f76ed8d46bbc436c5f4e5ce1151c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c59f60fef9d26ee6d029fa90674907711f79accb62ac11b8aebdf190599ad72a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-29T14:41:13Z",
    "title_canon_sha256": "c2db53f0f8a6a8d17ba20a380222a69e3c65b76ebea10113c580c346d3406bf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.14557",
    "kind": "arxiv",
    "version": 1
  }
}