Pith Number

pith:2U7JIQWY

pith:2021:2U7JIQWYUTCIKFEDT63NLKMSWI

not attested not anchored not stored refs pending

Six Outbursts of Comet 46P/Wirtanen

A. Andrews, Andrew J. Drake, Colin Snodgrass, Dan Reiley, Dennis Bodewits, Dmitry A. Duev, E. Khalouei, Eric C. Bellm, E. Unda-Sanzana, Frank J. Masci, J. Campbell-White, Jian-Yang Li, Johannes Allen, J. Skottfelt, J. Southworth, J. Tregloan-Reed, Matthew J. Graham, M. Dominik, M. Hundertmark, Michael S. P. Kelley, Michael W. Coughlin, M. J. Burgdorf, M. Rabus, N. Bach-M{\o}ller, P. Longa-Pe\~na, Richard Walters, S. Dib, S. Rahvar, S. Sajadian, T. C. Hinse, Thomas Kupfer, Tony L. Farnham, U. G. J{\o}rgensen, V. Bozza, Y. I. Fujii

arxiv:2105.05826 v1 · 2021-05-12 · 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{2U7JIQWYUTCIKFEDT63NLKMSWI}

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	2026-07-05T05:15:08.673768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d53e9442d8a4c48514839fb6d5a992b21ec5cbbce45f613e3cd6e5fb5ead5562

Aliases

arxiv: 2105.05826 · arxiv_version: 2105.05826v1 · doi: 10.48550/arxiv.2105.05826 · pith_short_12: 2U7JIQWYUTCI · pith_short_16: 2U7JIQWYUTCIKFED · pith_short_8: 2U7JIQWY

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/2U7JIQWYUTCIKFEDT63NLKMSWI \
  | 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: d53e9442d8a4c48514839fb6d5a992b21ec5cbbce45f613e3cd6e5fb5ead5562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cc1b71c94c8c47d3e91f7ba8bb74680508c94ca8ac9a0b66717f3422f2dcb91",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-05-12T17:37:04Z",
    "title_canon_sha256": "b0181deb25c1bac0edb1bc039d080adcd74d1604d2311b5263901cdf1a3042e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.05826",
    "kind": "arxiv",
    "version": 1
  }
}