Pith Number

pith:QCPA6QG6

pith:2011:QCPA6QG6C7L5DBPO3NPY4SYEMQ

not attested not anchored not stored refs pending

Blue luminous stars in nearby galaxies - UIT005: a possible link to the luminous blue variable stage

A. Herrero, D. J. Lennon, G. Meynet, L. J. Corral, M. A. Urbaneja

arxiv:1104.2928 v1 · 2011-04-14 · 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{QCPA6QG6C7L5DBPO3NPY4SYEMQ}

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	2026-05-18T02:02:28.404776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809e0f40de17d7d185eedb5f8e4b0464120d3db6ee5152e1cef2593a026f6fd9

Aliases

arxiv: 1104.2928 · arxiv_version: 1104.2928v1 · doi: 10.48550/arxiv.1104.2928 · pith_short_12: QCPA6QG6C7L5 · pith_short_16: QCPA6QG6C7L5DBPO · pith_short_8: QCPA6QG6

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/QCPA6QG6C7L5DBPO3NPY4SYEMQ \
  | 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: 809e0f40de17d7d185eedb5f8e4b0464120d3db6ee5152e1cef2593a026f6fd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef4f161d60efae5f2c84f4391267f8501064ec69f6e779dba1c9d19f53bc5802",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-14T21:14:55Z",
    "title_canon_sha256": "44a1fb920041996ee40ba952a8ae8dc1ad1cf4f006f050b4548edc9bc935b96e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2928",
    "kind": "arxiv",
    "version": 1
  }
}