Pith Number

pith:EHQUIEQ2

pith:2018:EHQUIEQ2RLAYJCJ5R4J3NKEDHF

not attested not anchored not stored refs pending

Cooling in the X-ray halo of the rotating, massive early-type galaxy NGC 7049

A. Jur\'a\v{n}ov\'a, A. Simionescu, J.B.R. Oonk, K. Lakhchaura, M. Donahue, M. Gaspari, M. Sun, N. Werner, P.E.J. Nulsen, R.E.A. Canning, S.W. Allen, T. Connor

arxiv:1808.05761 v2 · 2018-08-17 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHQUIEQ2RLAYJCJ5R4J3NKEDHF}

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	2026-05-17T23:55:55.620138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e144121a8ac184893d8f13b6a8833961f7248dfe8a224b0d756e5b8ce70cda

Aliases

arxiv: 1808.05761 · arxiv_version: 1808.05761v2 · doi: 10.48550/arxiv.1808.05761 · pith_short_12: EHQUIEQ2RLAY · pith_short_16: EHQUIEQ2RLAYJCJ5 · pith_short_8: EHQUIEQ2

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/EHQUIEQ2RLAYJCJ5R4J3NKEDHF \
  | 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: 21e144121a8ac184893d8f13b6a8833961f7248dfe8a224b0d756e5b8ce70cda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b06b0c4ffe21543a3f784dc87d079dcc6381e742c275e55adfadfd40d55d5ae",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-17T05:42:09Z",
    "title_canon_sha256": "682892a25d160c63d12afafc68ef6668c694601bc5a764fcf41ed131d3a38b07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05761",
    "kind": "arxiv",
    "version": 2
  }
}