Pith Number

pith:WXN5ZXI2

pith:2017:WXN5ZXI2ZUH4CC4GDV5FFHXELE

not attested not anchored not stored refs pending

Design, Development and Evaluation of a UAV to Study Air Quality in Qatar

Abdelhakim El Hassani, Husain Khamdan, Khalid Al-Hajjaji, Mouadh Ezzin, Nizar Zorba

arxiv:1709.05628 v1 · 2017-09-17 · cs.RO · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WXN5ZXI2ZUH4CC4GDV5FFHXELE}

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	2026-05-18T00:35:00.051023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5dbdcdd1acd0fc10b861d7a529ee4593d33bfaa579461b7d289d2b8618e9de2

Aliases

arxiv: 1709.05628 · arxiv_version: 1709.05628v1 · doi: 10.48550/arxiv.1709.05628 · pith_short_12: WXN5ZXI2ZUH4 · pith_short_16: WXN5ZXI2ZUH4CC4G · pith_short_8: WXN5ZXI2

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/WXN5ZXI2ZUH4CC4GDV5FFHXELE \
  | 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: b5dbdcdd1acd0fc10b861d7a529ee4593d33bfaa579461b7d289d2b8618e9de2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc2c41f2a043303e6d55338d450817679806097dd551477a9b0229ac9b79bc77",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2017-09-17T08:45:31Z",
    "title_canon_sha256": "73c6050a89604302d175aac3c1296b95fafb69921281ace4a41791e0eaaca98a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05628",
    "kind": "arxiv",
    "version": 1
  }
}