Pith Number

pith:WCMDPNZJ

pith:2018:WCMDPNZJ2PPKAGLRVUJBULK4DY

not attested not anchored not stored refs pending

NASA's Asteroid Grand Challenge: Strategy, Results and Lessons Learned

James Parr, Jason L Kessler, Jennifer L Gustetic, Shanessa Jackson, Victoria Friedensen

arxiv:1803.04564 v1 · 2018-03-12 · 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{WCMDPNZJ2PPKAGLRVUJBULK4DY}

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	2026-05-18T00:21:18.683374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b09837b729d3dea01971ad121a2d5c1e265e2890296b6328f33f3590959b0a5f

Aliases

arxiv: 1803.04564 · arxiv_version: 1803.04564v1 · doi: 10.48550/arxiv.1803.04564 · pith_short_12: WCMDPNZJ2PPK · pith_short_16: WCMDPNZJ2PPKAGLR · pith_short_8: WCMDPNZJ

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/WCMDPNZJ2PPKAGLRVUJBULK4DY \
  | 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: b09837b729d3dea01971ad121a2d5c1e265e2890296b6328f33f3590959b0a5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5197f3f3b870f49366fae7eeae5a1d249815816878a131d8ace781eafdda1c03",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-03-12T22:55:35Z",
    "title_canon_sha256": "df7b8cc930184d07fcb317ef0c42cbedf63e9477ed166f3d4c918ad554eacfd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04564",
    "kind": "arxiv",
    "version": 1
  }
}