Pith Number

pith:MA2PIU6E

pith:2018:MA2PIU6EVJ3AL35INWRLTMXWPQ

not attested not anchored not stored refs pending

LBT/MODS spectroscopy of globular clusters in the irregular galaxy NGC 4449

2), (2) Dipartimento di Fisica e Astronomia, (3) Space Telescope Science Institute, (4) INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica), A. Aloisi (3), A. Buzzoni (1), A. Marchetti (4), A. Mucciarelli (1, D. Romano (1), E. Morandi (2), F. Annibali (1), F. Cusano (1), L. L. Watkins (3), M. Fumana (4), M. Mignoli (1), M. Tosi (1), R. P. van der Marel (3). ((1) INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Universit\`a di Bologna

arxiv:1802.02338 v2 · 2018-02-07 · 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{MA2PIU6EVJ3AL35INWRLTMXWPQ}

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	2026-05-18T00:22:22.567891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6034f453c4aa7605efa86da2b9b2f67c289a295faced7ab95d31e6a877ef3cfb

Aliases

arxiv: 1802.02338 · arxiv_version: 1802.02338v2 · doi: 10.48550/arxiv.1802.02338 · pith_short_12: MA2PIU6EVJ3A · pith_short_16: MA2PIU6EVJ3AL35I · pith_short_8: MA2PIU6E

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/MA2PIU6EVJ3AL35INWRLTMXWPQ \
  | 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: 6034f453c4aa7605efa86da2b9b2f67c289a295faced7ab95d31e6a877ef3cfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb39c4b1c9a38087234683000db36d9c4330d8a902240cd516b5a6186c621b32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-07T08:10:04Z",
    "title_canon_sha256": "592a5c3beca7ddea523ce05a8bdd5159456be0344014bed3c1b2501251506a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02338",
    "kind": "arxiv",
    "version": 2
  }
}