Pith Number

pith:CZNRTKRU

pith:2019:CZNRTKRU5FANN33W72WJP33A7Y

not attested not anchored not stored refs pending

Navigation of a Quadratic Potential with Ellipsoidal Obstacles

Alejandro Ribeiro, Harshat Kumar, Santiago Paternain

arxiv:1908.08509 v2 · 2019-08-22 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZNRTKRU5FANN33W72WJP33A7Y}

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	2026-07-05T04:56:08.664810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

165b19aa34e940d6ef76feac97ef60fe1778f4bd356b41399d65f99c8599bad6

Aliases

arxiv: 1908.08509 · arxiv_version: 1908.08509v2 · doi: 10.48550/arxiv.1908.08509 · pith_short_12: CZNRTKRU5FAN · pith_short_16: CZNRTKRU5FANN33W · pith_short_8: CZNRTKRU

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/CZNRTKRU5FANN33W72WJP33A7Y \
  | 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: 165b19aa34e940d6ef76feac97ef60fe1778f4bd356b41399d65f99c8599bad6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1ff27e9bee620fe9201c44a00a3e2ec9dc679bd20bcdf505191306e26e2982d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-22T17:30:34Z",
    "title_canon_sha256": "040863ed0355b17b3ff3f7f94d2544c0e12f7a76f61cf75674e1d2f2e78a87f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08509",
    "kind": "arxiv",
    "version": 2
  }
}