Pith Number

pith:JXYWCVEU

pith:2016:JXYWCVEUM7BASPB3ZF6C2DBHN3

not attested not anchored not stored refs pending

The Massive Stellar Population of W49: A Spectroscopic Survey

Andrea Stolte, Anna Pasquali, Arjan Bik, Joachim M. Bestenlehner, Shi-Wei Wu, Thomas Henning, Wolfgang Brandner

arxiv:1602.05190 v1 · 2016-02-16 · 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{JXYWCVEUM7BASPB3ZF6C2DBHN3}

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	2026-05-18T01:17:41.357210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4df161549467c2093c3bc97c2d0c276ed4418cbd8293af54d5d9eb02eb028ca0

Aliases

arxiv: 1602.05190 · arxiv_version: 1602.05190v1 · doi: 10.48550/arxiv.1602.05190 · pith_short_12: JXYWCVEUM7BA · pith_short_16: JXYWCVEUM7BASPB3 · pith_short_8: JXYWCVEU

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/JXYWCVEUM7BASPB3ZF6C2DBHN3 \
  | 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: 4df161549467c2093c3bc97c2d0c276ed4418cbd8293af54d5d9eb02eb028ca0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7be57f6acf59b1f68d16ece63656f9924c3708c08bdfb0fe1bdd55372b0b750c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-16T21:00:00Z",
    "title_canon_sha256": "cfc94a4240e39314754a57e219b0f5fe65a900ec6a8f5d3340313459c83e7a45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05190",
    "kind": "arxiv",
    "version": 1
  }
}