Pith Number

pith:4KQW66HH

pith:2026:4KQW66HHXTFU643XSKTI23MMZU

not attested not anchored not stored refs pending

Multi-year Ground-Based Survey Photometry of Active Comet 103P/Hartley 2 and Centaur (2060) Chiron: A Tale of Two Comets in the Pre-LSST Era

A. Fraser Gillan, Alan Fitzsimmons, Ashish A. Mahabal, Carrie E. Holt, Denis Bodewits, George Helou, Giannantonio Milani, Henry H. Hsieh, Joseph Murtagh, Joseph P. Chatelain, Mansi M. Kasliwal, Matthew J. Graham, Matthew M. Dobson, Matthew M. Knight, Megan E. Schwamb, Michael S. P. Kelley, Quanzhi Ye, Reed Riddle, Richard G. Dekany, Ryan R. Lyttle, Sarah Greenstreet, Steven L. Groom, Thomas Lehmann, Tim Lister, Tracy X. Chen

arxiv:2606.30280 v1 · 2026-06-29 · 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{4KQW66HHXTFU643XSKTI23MMZU}

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	2026-06-30T02:17:57.293931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a16f78e7bccb4f737792a68d6d8ccd3fe1c7eddd9c720a41b6f8377054f881

Aliases

arxiv: 2606.30280 · arxiv_version: 2606.30280v1 · doi: 10.48550/arxiv.2606.30280 · pith_short_12: 4KQW66HHXTFU · pith_short_16: 4KQW66HHXTFU643X · pith_short_8: 4KQW66HH

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/4KQW66HHXTFU643XSKTI23MMZU \
  | 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: e2a16f78e7bccb4f737792a68d6d8ccd3fe1c7eddd9c720a41b6f8377054f881

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e128a4e478acbd833501029df5c83a1abddd94e5e29cfae577037d0ecbc36a27",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-06-29T13:23:16Z",
    "title_canon_sha256": "1275950c4a52fff965bc031c5f098f8ef98b1c9c190e996257388841095e80ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30280",
    "kind": "arxiv",
    "version": 1
  }
}