Pith Number

pith:GCAT72WC

pith:2025:GCAT72WCG66SBTSLMKUH3NSMTC

not attested not anchored not stored refs pending

Snapshot of a new interstellar comet: 3I/ATLAS has a red and featureless spectrum

Brayden Leicester, Brian Murphy, Colin Snodgrass, Cyrielle Opitom, Damien Hutsemekers, Emmanuel Jehin, Erica Bufanda, Jean Manfroid, L\'ea Ferellec, Manuela Lippi, Marin Ferrais, Mathieu Vander Donckt, Matthew M. Knight, Micha\"el Marsset, Michele T. Bannister, Rosemary Dorsey, Rosita Kokotanekova, Ryan Ridden-Harper, Said Hmiddouch, Sophie E. Deam, Vincent Okoth, Zouhair Benkhaldoun

arxiv:2507.05226 v2 · 2025-07-07 · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GCAT72WCG66SBTSLMKUH3NSMTC}

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.

Cited by

2 papers in Pith

NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)

Origin and evolution of NiI and FeI in the coma of the interstellar comet 3I/ATLAS throughout its trajectory

Receipt and verification

First computed	2026-07-05T11:34:53.613509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30813feac237bd20ce4b62a87db64c988a6c31c73ed8282c2931fdbf3c5202f7

Aliases

arxiv: 2507.05226 · arxiv_version: 2507.05226v2 · doi: 10.48550/arxiv.2507.05226 · pith_short_12: GCAT72WCG66S · pith_short_16: GCAT72WCG66SBTSL · pith_short_8: GCAT72WC

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/GCAT72WCG66SBTSLMKUH3NSMTC \
  | 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: 30813feac237bd20ce4b62a87db64c988a6c31c73ed8282c2931fdbf3c5202f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f891a1ef9dfc42741ec53eaed944240a0cda7a25029adfb51f82cf480c5c0781",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-07-07T17:35:30Z",
    "title_canon_sha256": "660a715fd8ba8bdb186d327e49c5fc7fd8345bbfed42f99ed06aa473630c8d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.05226",
    "kind": "arxiv",
    "version": 2
  }
}