Pith Number

pith:WYQPDU4X

pith:2021:WYQPDU4XBSAXB4ZNTYUP5GFVAV

not attested not anchored not stored refs pending

Spatio-temporal-spectral-angular observation model that integrates observations from UAV and mobile mapping vehicle for better urban mapping

Deren Li, Gui Cheng, Jian Liu, Xiao Huang, Zhenfeng Shao, Zhipeng Lu

arxiv:2109.00900 v2 · 2021-08-24 · 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{WYQPDU4XBSAXB4ZNTYUP5GFVAV}

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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	2026-07-05T03:11:33.280562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b620f1d3970c8170f32d9e28fe98b50566bcde7ed736a9f099550ce940ac37ec

Aliases

arxiv: 2109.00900 · arxiv_version: 2109.00900v2 · doi: 10.48550/arxiv.2109.00900 · pith_short_12: WYQPDU4XBSAX · pith_short_16: WYQPDU4XBSAXB4ZN · pith_short_8: WYQPDU4X

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/WYQPDU4XBSAXB4ZNTYUP5GFVAV \
  | 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: b620f1d3970c8170f32d9e28fe98b50566bcde7ed736a9f099550ce940ac37ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1704737877cae5ec7f40a178c505b15f13c280bea32149388ba7e1fbc05a0305",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-24T02:58:12Z",
    "title_canon_sha256": "bda11f6643e947d007f29a0eec68965ea656b98d98c7549ab0ee2b9345e3ae02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00900",
    "kind": "arxiv",
    "version": 2
  }
}