Pith Number

pith:JXNBUHBC

pith:2019:JXNBUHBCRRZ7PLRVJKM4LEDMFH

not attested not anchored not stored refs pending

Metallicity calibrations for diffuse ionised gas and low ionisation emission regions

Francesco Belfiore, Mirko Curti, Nimisha Kumari, Roberto Maiolino

arxiv:1902.01408 v1 · 2019-02-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JXNBUHBCRRZ7PLRVJKM4LEDMFH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:54:14.959161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dda1a1c228c73f7ae354a99c5906c29f717109a58028efbecee56b6a6e10d1e

Aliases

arxiv: 1902.01408 · arxiv_version: 1902.01408v1 · doi: 10.48550/arxiv.1902.01408 · pith_short_12: JXNBUHBCRRZ7 · pith_short_16: JXNBUHBCRRZ7PLRV · pith_short_8: JXNBUHBC

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/JXNBUHBCRRZ7PLRVJKM4LEDMFH \
  | 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: 4dda1a1c228c73f7ae354a99c5906c29f717109a58028efbecee56b6a6e10d1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f1e155b23f319098e5b7cd28c0a25275cd38ec789f45e1c6e85c49ebe8bbdd5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-04T19:00:02Z",
    "title_canon_sha256": "eee267daa97cf4f13aa97daf053cdea5b61be63630612b2b4f7603c879b792a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01408",
    "kind": "arxiv",
    "version": 1
  }
}