Pith Number

pith:VO4NBNOG

pith:2011:VO4NBNOGSEVKZVP5D2VFQCYPZJ

not attested not anchored not stored refs pending

Discovery of a stripped red giant core in a bright eclipsing binary system

A. Collier-Cameron, B. Smalley, B.T. Gaensicke, D.R. Anderson, G. Nelemans, M.R. Burleigh, P.F.L. Maxted, R.G. West, R.H. Ostensen, S. Geier, S.J. O'Toole, T. Kupfer, T.R. Marsh, U. Heber

arxiv:1107.4986 v2 · 2011-07-25 · 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{VO4NBNOGSEVKZVP5D2VFQCYPZJ}

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	2026-05-18T02:01:10.424159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abb8d0b5c6912aacd5fd1eaa580b0fca476b8b7676413a6f432d7b2b7c8c5d62

Aliases

arxiv: 1107.4986 · arxiv_version: 1107.4986v2 · doi: 10.48550/arxiv.1107.4986 · pith_short_12: VO4NBNOGSEVK · pith_short_16: VO4NBNOGSEVKZVP5 · pith_short_8: VO4NBNOG

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/VO4NBNOGSEVKZVP5D2VFQCYPZJ \
  | 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: abb8d0b5c6912aacd5fd1eaa580b0fca476b8b7676413a6f432d7b2b7c8c5d62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45bb6eab3d1de7da5ede790c2a657a7d21438d8afbd3dd251fedc4f17231a880",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-07-25T15:57:37Z",
    "title_canon_sha256": "1d5abe717e9f051910ce408ec54e3372f77cef7b8d0eca68962b0c872a3eebf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4986",
    "kind": "arxiv",
    "version": 2
  }
}