Pith Number

pith:XMZWISHG

pith:2015:XMZWISHGXYRIJIKMAHCQS3R2AR

not attested not anchored not stored refs pending

The O- and B-Type Stellar Population in W3: Beyond the High-Density Layer

George H. Rieke, Jinyoung Serena Kim, Megan M. Kiminki, Micaela B. Bagley, William H. Sherry

arxiv:1509.00081 v1 · 2015-08-31 · astro-ph.SR · 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{XMZWISHGXYRIJIKMAHCQS3R2AR}

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	2026-05-18T01:28:03.271205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb336448e6be2284a14c01c5096e3a044b9ad4d1cee4e17a1d1986b1158d4583

Aliases

arxiv: 1509.00081 · arxiv_version: 1509.00081v1 · doi: 10.48550/arxiv.1509.00081 · pith_short_12: XMZWISHGXYRI · pith_short_16: XMZWISHGXYRIJIKM · pith_short_8: XMZWISHG

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/XMZWISHGXYRIJIKMAHCQS3R2AR \
  | 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: bb336448e6be2284a14c01c5096e3a044b9ad4d1cee4e17a1d1986b1158d4583

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ec39fad77ce80f8a9cbfff9475902b89c9defa5888ac19c78e62b73a2df9d66",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-08-31T21:32:50Z",
    "title_canon_sha256": "0737e1c57348ce99e943d22767a7a2dc6267c81e0cbcfa039984e4f06807f979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00081",
    "kind": "arxiv",
    "version": 1
  }
}