Pith Number

pith:5WHEGCW4

pith:2018:5WHEGCW4ZWL2J5MOQPP2PYAQIA

not attested not anchored not stored refs pending

Outflowing OH$^+$ in Markarian 231: the ionization rate of the molecular gas

E. Gonz\'alez-Alfonso, E. Sturm, H. A. Smith, H. S. P. M\"uller, J. Fischer, K. P. Stewart, M. L. N. Ashby, S. Bruderer, S. Veilleux

arxiv:1803.04690 v1 · 2018-03-13 · 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{5WHEGCW4ZWL2J5MOQPP2PYAQIA}

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	2026-05-18T00:17:04.176180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed8e430adccd97a4f58e83dfa7e010401dc2119adc3cd28faa40b8ea8f54e57e

Aliases

arxiv: 1803.04690 · arxiv_version: 1803.04690v1 · doi: 10.48550/arxiv.1803.04690 · pith_short_12: 5WHEGCW4ZWL2 · pith_short_16: 5WHEGCW4ZWL2J5MO · pith_short_8: 5WHEGCW4

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/5WHEGCW4ZWL2J5MOQPP2PYAQIA \
  | 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: ed8e430adccd97a4f58e83dfa7e010401dc2119adc3cd28faa40b8ea8f54e57e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eeb0470cd0e761da3ade5bd7ffcc2864d71967803c9f954e9a37edfceb47863",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-13T09:13:28Z",
    "title_canon_sha256": "e01570524806e960a447406fe55c6c8de80b05c8b1273765f719a876c6c1482a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04690",
    "kind": "arxiv",
    "version": 1
  }
}