Pith Number

pith:EL4CYWV5

pith:2016:EL4CYWV5HWKAYFV7IX2HNABCV2

not attested not anchored not stored refs pending

A physically-based model of the ionizing radiation from active galaxies for photoionization modeling

Adam D. Thomas, Brent A. Groves, Chichuan Jin, Lisa J. Kewley, Michael A. Dopita, Ralph S. Sutherland

arxiv:1611.05165 v1 · 2016-11-16 · 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{EL4CYWV5HWKAYFV7IX2HNABCV2}

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	2026-05-18T00:53:57.689276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22f82c5abd3d940c16bf45f4768022aeb4b54520a410e3e5b486b102f3967b51

Aliases

arxiv: 1611.05165 · arxiv_version: 1611.05165v1 · doi: 10.48550/arxiv.1611.05165 · pith_short_12: EL4CYWV5HWKA · pith_short_16: EL4CYWV5HWKAYFV7 · pith_short_8: EL4CYWV5

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/EL4CYWV5HWKAYFV7IX2HNABCV2 \
  | 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: 22f82c5abd3d940c16bf45f4768022aeb4b54520a410e3e5b486b102f3967b51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3704b2bceee361de5ddfbcefd64703e9605e0656f69c1dd1ffeed17edd98e3d0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-11-16T06:40:48Z",
    "title_canon_sha256": "efb4cdd92bf6e958151be1335427ecf1481e6064a87088b62adbd7889cf44209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05165",
    "kind": "arxiv",
    "version": 1
  }
}