Pith Number

pith:D5IKUBFK

pith:2021:D5IKUBFKJX43QRQQ7SM4HKPXBX

not attested not anchored not stored refs pending

Development, Implementation, and Experimental Outdoor Evaluation of Quadcopter Controllers for Computationally Limited Embedded Systems

Brian Ha, Ella Atkins, Ilya Kolmanovsky, Juan Paredes, Manuel Lanchares, Peter Gaskell, Prashin Sharma

arxiv:2105.14231 v2 · 2021-05-29 · eess.SY · cs.RO · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5IKUBFKJX43QRQQ7SM4HKPXBX}

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	2026-07-05T02:45:38.726604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f50aa04aa4df9b84610fc99c3a9f70dc30933f3141a553dc1d57406f3de0a07

Aliases

arxiv: 2105.14231 · arxiv_version: 2105.14231v2 · doi: 10.48550/arxiv.2105.14231 · pith_short_12: D5IKUBFKJX43 · pith_short_16: D5IKUBFKJX43QRQQ · pith_short_8: D5IKUBFK

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/D5IKUBFKJX43QRQQ7SM4HKPXBX \
  | 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: 1f50aa04aa4df9b84610fc99c3a9f70dc30933f3141a553dc1d57406f3de0a07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea70a168d49c0a7615c49b279b3274e1ac533aa1b8422fc6db2e176862641718",
    "cross_cats_sorted": [
      "cs.RO",
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-05-29T06:50:09Z",
    "title_canon_sha256": "de5de2b339863636995668347810d14f4d415aaacd10f4b64b12b4a94239f1a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.14231",
    "kind": "arxiv",
    "version": 2
  }
}