Pith Number

pith:GNPULSTI

pith:2015:GNPULSTIVN7JN222POJBH4OS4T

not attested not anchored not stored refs pending

X-ray haloes and star formation in early-type galaxies

((1) Dept. of Physics, 2), Andrea Negri (1, Astronomy, Luca Ciotti (1), Silvia Pellegrini (1), University of Bologna (2) Institut d'Astrophysique de Paris)

arxiv:1501.07111 v3 · 2015-01-28 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GNPULSTIVN7JN222POJBH4OS4T}

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	2026-05-18T02:17:24.089934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

335f45ca68ab7e96eb5a7b9213f1d2e4f69436b4a23be756e2d237456d5b1c9a

Aliases

arxiv: 1501.07111 · arxiv_version: 1501.07111v3 · doi: 10.48550/arxiv.1501.07111 · pith_short_12: GNPULSTIVN7J · pith_short_16: GNPULSTIVN7JN222 · pith_short_8: GNPULSTI

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/GNPULSTIVN7JN222POJBH4OS4T \
  | 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: 335f45ca68ab7e96eb5a7b9213f1d2e4f69436b4a23be756e2d237456d5b1c9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efb9e03e0a0d386fbc6ed70ce132b6a187516a42ee7a6760599087b5247696ca",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-28T14:29:18Z",
    "title_canon_sha256": "7951ee290627fae77e4fb02822423fc62dd6494c2f567e2d00ca1fd8c3e7d8d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07111",
    "kind": "arxiv",
    "version": 3
  }
}