Pith Number

pith:HF6QFBVF

pith:2019:HF6QFBVFDTB2D2TASUXHWCAHQL

not attested not anchored not stored refs pending

On the nature of the unusual transient AT 2018cow from HI observations of its host galaxy

A. de Ugarte Postigo, A. Ghosh, A. Le\'sniewska, A. Nicuesa Guelbenzu, A. Rossi, C. C. Th\"one, D. A. Kann, D. Watson, E. Le Floc'h, E. Palazzi, G. I. G. J\'ozsa, H. Kuncarayakti, J. Hjorth, J. P. U. Fynbo, J. Rasmussen, K. Misra, L. Galbany, L. K. Hunt, L. Resmi, Micha{\l} J. Micha{\l}owski (AMU, O. M. Smirnov, P. Kamphuis, Pozna\'n), P. Schady, P. Serra, S. Savaglio, S. Schulze

arxiv:1902.10144 v2 · 2019-02-26 · astro-ph.HE · 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{HF6QFBVFDTB2D2TASUXHWCAHQL}

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	2026-05-17T23:41:11.946752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

397d0286a51cc3a1ea60952e7b080782fbd4fb064195431de9bb9d07d3b14c4c

Aliases

arxiv: 1902.10144 · arxiv_version: 1902.10144v2 · doi: 10.48550/arxiv.1902.10144 · pith_short_12: HF6QFBVFDTB2 · pith_short_16: HF6QFBVFDTB2D2TA · pith_short_8: HF6QFBVF

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/HF6QFBVFDTB2D2TASUXHWCAHQL \
  | 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: 397d0286a51cc3a1ea60952e7b080782fbd4fb064195431de9bb9d07d3b14c4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4b6dc7522be86a717ee417b67546520350d0ba3fd5670e32d54c38fe5618ea9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-02-26T19:00:00Z",
    "title_canon_sha256": "7296c7817d7628c0b1b6f225ecd717aa2eed7714b41a1ac7b9740aef3629ce3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10144",
    "kind": "arxiv",
    "version": 2
  }
}