Pith Number

pith:RUTXW4U5

pith:2013:RUTXW4U5N6RGFGAOWMKVJNH5TF

not attested not anchored not stored refs pending

Mean age gradient and asymmetry in the star formation history of the Small Magellanic Cloud

2), (2) INAF-OABO, (3) School of Mathematics, (4) STSCI, (5) University of Wisconsin, (6) Astronomisches Rechen-Institut, A. A. Cole (3), A. Nota (4) ((1) Astronomy Dept., Australia, E. K. Grebel (6), E. Sabbi (4), Germany), Italy, J. Anderson (4), J. S. Gallagher (5), M. Cignoni (1, M. Tosi (2), Physics, University of Bologna, University of Tasmania, USA, Zentrum fuer Astronomie der Universitaet Heidelberg

arxiv:1308.1409 v2 · 2013-08-06 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RUTXW4U5N6RGFGAOWMKVJNH5TF}

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	2026-05-18T01:48:22.960656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d277b729d6fa262980eb31554b4fd994189ab2247dfae2eea05c89e048bbc29

Aliases

arxiv: 1308.1409 · arxiv_version: 1308.1409v2 · doi: 10.48550/arxiv.1308.1409 · pith_short_12: RUTXW4U5N6RG · pith_short_16: RUTXW4U5N6RGFGAO · pith_short_8: RUTXW4U5

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/RUTXW4U5N6RGFGAOWMKVJNH5TF \
  | 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: 8d277b729d6fa262980eb31554b4fd994189ab2247dfae2eea05c89e048bbc29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67f41612fd194cf91e49746cad3e59fbe0a80d8d67b754fd47cb5cc75c6c9717",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-08-06T20:05:40Z",
    "title_canon_sha256": "31403da4c7d9bfc69da9d9191fba3bb96c4aa906610e33602b86f0f0d63a6f00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1409",
    "kind": "arxiv",
    "version": 2
  }
}