Pith Number

pith:B3JKY6QJ

pith:2013:B3JKY6QJTH44G4BFBHCDZ4WPIA

not attested not anchored not stored refs pending

Yarkovsky-driven impact risk analysis for asteroid (99942) Apophis

A. Milani, D. Farnocchia, D. J. Tholen, F. Bernardi, G. T. Elliott, M. Micheli, P. W. Chodas, S. R. Chesley

arxiv:1301.1607 v2 · 2013-01-08 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B3JKY6QJTH44G4BFBHCDZ4WPIA}

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	2026-05-18T01:52:14.967878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed2ac7a0999f9c3702509c43cf2cf401b6b8f8343723c80cc97a0212ccab485

Aliases

arxiv: 1301.1607 · arxiv_version: 1301.1607v2 · doi: 10.48550/arxiv.1301.1607 · pith_short_12: B3JKY6QJTH44 · pith_short_16: B3JKY6QJTH44G4BF · pith_short_8: B3JKY6QJ

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/B3JKY6QJTH44G4BFBHCDZ4WPIA \
  | 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: 0ed2ac7a0999f9c3702509c43cf2cf401b6b8f8343723c80cc97a0212ccab485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edee1baec24ddf7cc8f5885d9a54af32533544fd1d518d7b8b6911d064c8e4ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-01-08T17:40:29Z",
    "title_canon_sha256": "15c38a42aa3b7c90c458afc9317c92357cdffa2fc15d00d16a1d7da93e435deb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1607",
    "kind": "arxiv",
    "version": 2
  }
}