Pith Number

pith:QYUCDVED

pith:2018:QYUCDVEDW4LIGE5F5BWN4RKN4E

not attested not anchored not stored refs pending

HST FUV spectroscopy of the short orbital period recurrent nova CI Aql: Implications for white dwarf mass evolution

Edward M. Sion, Matt J. Darnley, Patrick Godon, R.E. Wilson, Robert E. Williams, Sumner Starrfield

arxiv:1812.09993 v1 · 2018-12-24 · 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{QYUCDVEDW4LIGE5F5BWN4RKN4E}

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	2026-05-17T23:53:23.348628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

862821d483b7168313a5e86cde454de125a899bebc2c6bad15b4ef6ccce8ceda

Aliases

arxiv: 1812.09993 · arxiv_version: 1812.09993v1 · doi: 10.48550/arxiv.1812.09993 · pith_short_12: QYUCDVEDW4LI · pith_short_16: QYUCDVEDW4LIGE5F · pith_short_8: QYUCDVED

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/QYUCDVEDW4LIGE5F5BWN4RKN4E \
  | 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: 862821d483b7168313a5e86cde454de125a899bebc2c6bad15b4ef6ccce8ceda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e4fb4fcceb47e7cc48d067759688176f291882970aa8aff339171b1f17baba6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-24T22:40:25Z",
    "title_canon_sha256": "1bd497b5c738ebb479760eab8d6f994edad5aeb4dec13c77fbe84282065c1829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09993",
    "kind": "arxiv",
    "version": 1
  }
}