Pith Number

pith:JAWQIBS7

pith:2011:JAWQIBS7CHIH6Z2URYTWFU7F6T

not attested not anchored not stored refs pending

The Evolution of Stellar Populations in the Outer Disks of Spiral Galaxies

Daniela Calzetti, Daniel A. Dale, David Thilker, Gerhardt R. Meurer, Hui Dong, L. C. Johnson, Luciana Bianchi, Michael Regan, Robert C. Kennicutt, Rupali Chandar, Stacey Alberts

arxiv:1102.2893 v1 · 2011-02-14 · 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{JAWQIBS7CHIH6Z2URYTWFU7F6T}

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	2026-05-18T02:03:11.204063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

482d04065f11d07f67548e2762d3e5f4eb482151a218b1e082c90dddc8b01ea4

Aliases

arxiv: 1102.2893 · arxiv_version: 1102.2893v1 · doi: 10.48550/arxiv.1102.2893 · pith_short_12: JAWQIBS7CHIH · pith_short_16: JAWQIBS7CHIH6Z2U · pith_short_8: JAWQIBS7

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/JAWQIBS7CHIH6Z2URYTWFU7F6T \
  | 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: 482d04065f11d07f67548e2762d3e5f4eb482151a218b1e082c90dddc8b01ea4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fd416cf419317fdf7b75dcc9dc153b520d6d9bbdb16717733037016b059bdd0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-14T21:00:04Z",
    "title_canon_sha256": "37707901501b57df58b8b242bf3528c55cb2114a9081e81596264dc3b09593af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2893",
    "kind": "arxiv",
    "version": 1
  }
}