Pith Number

pith:UJCSZZKG

pith:2019:UJCSZZKGH5BDYOPBC3SUU4CLZJ

not attested not anchored not stored refs pending

Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics

Brent Groves, Claus Leitherer, David Nicholls, Elizabeth R. Stanway, Joshua J. D'Agostino, Lisa J. Kewley, Nell Byler, Ralph S. Sutherland

arxiv:1905.09528 v3 · 2019-05-23 · 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{UJCSZZKGH5BDYOPBC3SUU4CLZJ}

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	2026-05-17T23:43:56.035148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2452ce5463f423c39e116e54a704bca597a6b9a50cf4a2efdc2deef891972d9

Aliases

arxiv: 1905.09528 · arxiv_version: 1905.09528v3 · doi: 10.48550/arxiv.1905.09528 · pith_short_12: UJCSZZKGH5BD · pith_short_16: UJCSZZKGH5BDYOPB · pith_short_8: UJCSZZKG

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/UJCSZZKGH5BDYOPBC3SUU4CLZJ \
  | 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: a2452ce5463f423c39e116e54a704bca597a6b9a50cf4a2efdc2deef891972d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31d335aa08f60d1224bc477c8d274a8e0a8e8642b924ee3f4689bbcc1ec3c28d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-23T08:29:44Z",
    "title_canon_sha256": "50f7c44a5e6bcbd71dec3bbf9d7d1615aa60a87c1ee7617d5d4ad6259ae1d91a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09528",
    "kind": "arxiv",
    "version": 3
  }
}