Pith Number

pith:7A5QD3II

pith:2017:7A5QD3IIOWPE4GNULX3GESGNMU

not attested not anchored not stored refs pending

Optimized Bucket Wheel Design for Asteroid Excavation

Andrew Thoesen, Erik Asphaug, Jekanthan Thangavelautham, Laurence Garvie, Ravi Teja Nallapu

arxiv:1701.07547 v1 · 2017-01-26 · cs.RO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7A5QD3IIOWPE4GNULX3GESGNMU}

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	2026-05-18T00:52:03.185914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f83b01ed08759e4e19b45df66248cd65090ae3a7208c35f00f30f7da849276a6

Aliases

arxiv: 1701.07547 · arxiv_version: 1701.07547v1 · doi: 10.48550/arxiv.1701.07547 · pith_short_12: 7A5QD3IIOWPE · pith_short_16: 7A5QD3IIOWPE4GNU · pith_short_8: 7A5QD3II

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/7A5QD3IIOWPE4GNULX3GESGNMU \
  | 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: f83b01ed08759e4e19b45df66248cd65090ae3a7208c35f00f30f7da849276a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53e4da54a23dca24d466fec4b41a15537bd30a9f4ef8677a0dd135301f23b2c0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2017-01-26T02:09:00Z",
    "title_canon_sha256": "55f96dc94812205fb1c8f05676a9232785131ba79a04851615ca84a7684c1582"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07547",
    "kind": "arxiv",
    "version": 1
  }
}