Pith Number

pith:YXDY2WUM

pith:2021:YXDY2WUMEQSDFTXHJOPCPMLM2P

not attested not anchored not stored refs pending

Oriented Object Detection in Aerial Images Based on Area Ratio of Parallelogram

Jiangping Lu, Linlin Ou, Mi Lin, Xinyi Yu

arxiv:2109.10187 v5 · 2021-09-21 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YXDY2WUMEQSDFTXHJOPCPMLM2P}

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	2026-07-05T03:29:52.284012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5c78d5a8c242432cee74b9e27b16cd3e2ecf47a6e4ead8f06938d5981a7badb

Aliases

arxiv: 2109.10187 · arxiv_version: 2109.10187v5 · doi: 10.48550/arxiv.2109.10187 · pith_short_12: YXDY2WUMEQSD · pith_short_16: YXDY2WUMEQSDFTXH · pith_short_8: YXDY2WUM

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/YXDY2WUMEQSDFTXHJOPCPMLM2P \
  | 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: c5c78d5a8c242432cee74b9e27b16cd3e2ecf47a6e4ead8f06938d5981a7badb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "223e942cfd41cf43fb2128098daaf3a58fe293c9878a7082ac678ba74423cc05",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-21T14:13:36Z",
    "title_canon_sha256": "ebd046d9d924452dd6ffebec5ecbe34d56bee753fc3533ff570d351c2c54a9c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10187",
    "kind": "arxiv",
    "version": 5
  }
}