Pith Number

pith:U4E5Q5TL

pith:2005:U4E5Q5TLHXLAAV3CC7MIRFDI6T

not attested not anchored not stored refs pending

On the possibility of a helium white dwarf donor in the presumed ultracompact binary 2S 0918-549

A. Cumming (McGill University), F. Verbunt, J.J.M. in 't Zand (SRON & Utrecht University), M.V. van der Sluys, O.R. Pols (Utrecht University)

arxiv:astro-ph/0506666 v1 · 2005-06-27 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4E5Q5TLHXLAAV3CC7MIRFDI6T}

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.

Cited by

2 papers in Pith

EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova

Astrophysics with the Laser Interferometer Space Antenna

Receipt and verification

First computed	2026-07-04T16:52:41.583137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a709d8766b3dd600576217d8889468f4cfc2261338dbaceca9ff8a3111de1e17

Aliases

arxiv: astro-ph/0506666 · arxiv_version: astro-ph/0506666v1 · doi: 10.48550/arxiv.astro-ph/0506666 · pith_short_12: U4E5Q5TLHXLA · pith_short_16: U4E5Q5TLHXLAAV3C · pith_short_8: U4E5Q5TL

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/U4E5Q5TLHXLAAV3CC7MIRFDI6T \
  | 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: a709d8766b3dd600576217d8889468f4cfc2261338dbaceca9ff8a3111de1e17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eecbdb429d15f3263800119d3d47fceb066e5ef4094fb7a84bb1cd7293489f94",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-27T20:17:45Z",
    "title_canon_sha256": "591c2ea37025d31f1ec83b70076f22b6d65fe2987de002820956e03f5af5e5f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506666",
    "kind": "arxiv",
    "version": 1
  }
}