Pith Number

pith:QOGMHR2U

pith:2019:QOGMHR2UUJOXEZK7MEXNJWFYG3

not attested not anchored not stored refs pending

2I/Borisov: A C$_2$ depleted interstellar comet

A. Fitzsimmons, B. Yang, C. Opitom, C. Snodgrass, E. Jehin, J. T. Kleyna, J. V. Keane, K. J. Meech, M. Micheli, O. Hainaut, Y. Moulane, Z. Benkhaldoun

arxiv:1910.09078 v2 · 2019-10-20 · 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{QOGMHR2UUJOXEZK7MEXNJWFYG3}

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	2026-07-05T00:32:01.904933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

838cc3c754a25d72655f612ed4d8b836c52c93ad323df66d6f60274b883d854b

Aliases

arxiv: 1910.09078 · arxiv_version: 1910.09078v2 · doi: 10.48550/arxiv.1910.09078 · pith_short_12: QOGMHR2UUJOX · pith_short_16: QOGMHR2UUJOXEZK7 · pith_short_8: QOGMHR2U

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/QOGMHR2UUJOXEZK7MEXNJWFYG3 \
  | 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: 838cc3c754a25d72655f612ed4d8b836c52c93ad323df66d6f60274b883d854b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9b7ef90075673302335d1056b1ea17cc2dbf7dc4cddfdee0cad0defe5cc9baa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-10-20T23:19:51Z",
    "title_canon_sha256": "2286bedbb0d3fb8e14fd50419eeb8b333f684c0104a6c4911bd77ac82615d447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.09078",
    "kind": "arxiv",
    "version": 2
  }
}