Pith Number

pith:XFSELNCL

pith:2017:XFSELNCL7YXZEUKWMQWMBZ6SXS

not attested not anchored not stored refs pending

PNe and H II regions in the starburst irregular galaxy NGC 4449 from LBT MODS data

(2) INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica, (3) Zentrum fuer Astronomie der Universit\"at Heidelberg, (4) Space Telescope Science Institute), A. Aloisi (4) ((1) INAF-Osservatorio Astronomico di Bologna, A. Buzzoni (1), A. Marchetti (2), A. Pasquali (3), D. Romano (1), F. Annibali (1), F. Cusano (1), M. Fumana (2), M.Mignoli (1), M. Tosi (1)

arxiv:1706.02108 v1 · 2017-06-07 · 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{XFSELNCL7YXZEUKWMQWMBZ6SXS}

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	2026-05-18T00:40:57.393218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b96445b44bfe2f925156642cc0e7d2bcbc20b4006ed7fbee65945fcbb1004801

Aliases

arxiv: 1706.02108 · arxiv_version: 1706.02108v1 · doi: 10.48550/arxiv.1706.02108 · pith_short_12: XFSELNCL7YXZ · pith_short_16: XFSELNCL7YXZEUKW · pith_short_8: XFSELNCL

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/XFSELNCL7YXZEUKWMQWMBZ6SXS \
  | 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: b96445b44bfe2f925156642cc0e7d2bcbc20b4006ed7fbee65945fcbb1004801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9760c8101d3a78aaf1ac9100aa46d789d9a12705479d2ce0cdf7d5e75bbd10b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-07T09:53:19Z",
    "title_canon_sha256": "b7c7a1c6340ff7db64454b48995d676694640d5c9b0cdd0537b6b5130eda19b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02108",
    "kind": "arxiv",
    "version": 1
  }
}