Pith Number

pith:UHRPQ7VI

pith:2018:UHRPQ7VIKWLWD3XKECAMEMXA7F

not attested not anchored not stored refs pending

An On-Orbit CubeSat Centrifuge for Asteroid Science and Exploration

Erik Asphaug, Jekan Thangavelautham, Stephen Schwartz

arxiv:1812.11663 v1 · 2018-12-31 · 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{UHRPQ7VIKWLWD3XKECAMEMXA7F}

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	2026-05-17T23:57:11.420528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1e2f87ea8559761eeea2080c232e0f97d566c8a55867e0b4515d34d76caced6

Aliases

arxiv: 1812.11663 · arxiv_version: 1812.11663v1 · doi: 10.48550/arxiv.1812.11663 · pith_short_12: UHRPQ7VIKWLW · pith_short_16: UHRPQ7VIKWLWD3XK · pith_short_8: UHRPQ7VI

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/UHRPQ7VIKWLWD3XKECAMEMXA7F \
  | 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: a1e2f87ea8559761eeea2080c232e0f97d566c8a55867e0b4515d34d76caced6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56758f16b1c86555b68e0a0d5ab5395922f35d925f34f4c03d1c98dc83482142",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-31T02:04:16Z",
    "title_canon_sha256": "797a603b6103dc44b1d30a547ef25f39aa47c192c292f7f5cfb9421ef355db25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11663",
    "kind": "arxiv",
    "version": 1
  }
}