Pith Number

pith:U6G4QMCP

pith:2017:U6G4QMCPIULGCPTUXLFT4B5O3X

not attested not anchored not stored refs pending

Efficient 3D Placement of a UAV Using Particle Swarm Optimization

Abdallah Khreishah, Ahmad Sawalmeh, Ayoub Alsarhan, Hazim Shakhatreh, Issa Khalil, Noor Shamsiah Othman

arxiv:1705.09769 v1 · 2017-05-27 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6G4QMCPIULGCPTUXLFT4B5O3X}

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	2026-05-18T00:43:34.513301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a78dc8304f4516613e74bacb3e07aedde30a15861b3ddba5df12251cbdc7fb3e

Aliases

arxiv: 1705.09769 · arxiv_version: 1705.09769v1 · doi: 10.48550/arxiv.1705.09769 · pith_short_12: U6G4QMCPIULG · pith_short_16: U6G4QMCPIULGCPTU · pith_short_8: U6G4QMCP

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/U6G4QMCPIULGCPTUXLFT4B5O3X \
  | 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: a78dc8304f4516613e74bacb3e07aedde30a15861b3ddba5df12251cbdc7fb3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "482a522fe8612b0a873c577fdf7ce8e48382eb175b8bb894b2a4dc6dde2554a7",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-27T05:48:39Z",
    "title_canon_sha256": "40d962fa6e8fff7b5737488d5d9c949feae0a84310aede146d672b794c06cc4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09769",
    "kind": "arxiv",
    "version": 1
  }
}