Pith Number

pith:QJZNRM3J

pith:2016:QJZNRM3J55ESEGT4433464LMJR

not attested not anchored not stored refs pending

HII Region Ionization of the Interstellar Medium: A Case Study of NGC 7538

Dana S. Balser, L. D. Anderson, Matteo Luisi, T. M. Bania, Trey V. Wenger

arxiv:1605.02685 v1 · 2016-05-09 · 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{QJZNRM3J55ESEGT4433464LMJR}

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	2026-05-18T01:11:44.326387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8272d8b369ef49221a7ce6f7cf716c4c7876ecdb1fb0957b39dc69a05b51e823

Aliases

arxiv: 1605.02685 · arxiv_version: 1605.02685v1 · doi: 10.48550/arxiv.1605.02685 · pith_short_12: QJZNRM3J55ES · pith_short_16: QJZNRM3J55ESEGT4 · pith_short_8: QJZNRM3J

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/QJZNRM3J55ESEGT4433464LMJR \
  | 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: 8272d8b369ef49221a7ce6f7cf716c4c7876ecdb1fb0957b39dc69a05b51e823

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85436d9baccb0303da5eb9ec5675f51e4d39df775b51087f63badc0861d33e7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-09T18:27:43Z",
    "title_canon_sha256": "2d33013d82aa5d7624e714d9cc4c49c8a2a904ce13e559d5665491a66f9c04a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02685",
    "kind": "arxiv",
    "version": 1
  }
}