Pith Number

pith:R7MYJ3FO

pith:2021:R7MYJ3FOXLQTQPKHBZN2RBELCQ

not attested not anchored not stored refs pending

Anti-collision Technologies for Unmanned Aerial Vehicles: Recent Advances and Future Trends

Huici Wu, Jiarong Han, Meichen Lai, Zeyang Meng, Zhiqing Wei, Zhiyong Feng

arxiv:2109.12832 v3 · 2021-09-27 · 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{R7MYJ3FOXLQTQPKHBZN2RBELCQ}

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	2026-07-05T04:00:57.800508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd984ecaebae1383d470e5ba8848b14045d4366f6b30a4d6b34218fb0f58815

Aliases

arxiv: 2109.12832 · arxiv_version: 2109.12832v3 · doi: 10.48550/arxiv.2109.12832 · pith_short_12: R7MYJ3FOXLQT · pith_short_16: R7MYJ3FOXLQTQPKH · pith_short_8: R7MYJ3FO

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/R7MYJ3FOXLQTQPKHBZN2RBELCQ \
  | 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: 8fd984ecaebae1383d470e5ba8848b14045d4366f6b30a4d6b34218fb0f58815

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a2f8f9510fd3bda950a78d27426078f69b77fc48b6a51ee376a4b5464a72ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2021-09-27T07:08:39Z",
    "title_canon_sha256": "5095a2f799c118f6170919cea56dc58c18b81dcdf1bbd8d83770fd7ec06e4fc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12832",
    "kind": "arxiv",
    "version": 3
  }
}