Pith Number

pith:7JA5GP5F

pith:2011:7JA5GP5FZAM7FPERCSZDIYESTI

not attested not anchored not stored refs pending

Large-scale shock-ionized and photo-ionized gas in M83: the impact of star formation

Abhijit Saha, Alistair R. Walker, Bradley C. Whitmore, Bruce Balick, Daniela Calzetti, Donald Hall, Erick T. Young, Francesco Paresce, Howard E. Bond, Jay A. Frogel, John T. Trauger, Jon A. Holtzman, Joseph I. Silk, Marcella Carollo, Max Mutchler, Michael A. Dopita, Michael J. Disney, Patrick J. McCarthy, Randy A. Kimble, Robert W. O'Connell, Rogier A. Windhorst, Sungryong Hong, William P. Blair

arxiv:1102.2444 v1 · 2011-02-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JA5GP5FZAM7FPERCSZDIYESTI}

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	2026-05-18T02:03:11.844586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa41d33fa5c819f2bc9114b23460929a32ee9078d486467504909d90ecc4a8c6

Aliases

arxiv: 1102.2444 · arxiv_version: 1102.2444v1 · doi: 10.48550/arxiv.1102.2444 · pith_short_12: 7JA5GP5FZAM7 · pith_short_16: 7JA5GP5FZAM7FPER · pith_short_8: 7JA5GP5F

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/7JA5GP5FZAM7FPERCSZDIYESTI \
  | 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: fa41d33fa5c819f2bc9114b23460929a32ee9078d486467504909d90ecc4a8c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44573958333950cd954d15ed7fce64f568655c33ca2f300f7132a81d0b690675",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-11T21:21:49Z",
    "title_canon_sha256": "8780a3a862202aadf5cd52ce67c6bf4634f54c68a604d439e2b6e48dd1ddc2a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2444",
    "kind": "arxiv",
    "version": 1
  }
}