Pith Number

pith:B726D2T4

pith:2015:B726D2T4TZ3NN7KJDZDLWR2EFS

not attested not anchored not stored refs pending

An upper limit on the ratio between the Extreme Ultraviolet and the bolometric luminosities of stars hosting habitable planets

Sujan Sengupta

arxiv:1501.07148 v3 · 2015-01-28 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B726D2T4TZ3NN7KJDZDLWR2EFS}

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	2026-05-18T01:16:18.965206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ff5e1ea7c9e76d6fd491e46bb47442c8aaf8ec3c0cfb8d77ed5e857affbac26

Aliases

arxiv: 1501.07148 · arxiv_version: 1501.07148v3 · doi: 10.48550/arxiv.1501.07148 · pith_short_12: B726D2T4TZ3N · pith_short_16: B726D2T4TZ3NN7KJ · pith_short_8: B726D2T4

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/B726D2T4TZ3NN7KJDZDLWR2EFS \
  | 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: 0ff5e1ea7c9e76d6fd491e46bb47442c8aaf8ec3c0cfb8d77ed5e857affbac26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bed3208e4d870f103006b473db92bb3fc4a0ee99f1b17df848e584b194990406",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-01-28T15:29:17Z",
    "title_canon_sha256": "3efcb5db83a892ebda26de73bb7a8a99bfb40869b68accebd6aefcc46e046935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07148",
    "kind": "arxiv",
    "version": 3
  }
}