Pith Number

pith:JWFFWJM2

pith:2015:JWFFWJM22BNCVDCI2SBRXIZTA3

not attested not anchored not stored refs pending

A double white dwarf with a paradoxical origin?

A. Gal-Yam, A.G. Istrate, B.T. Gaensicke, C. Badenes, D. Koester, D. Steeghs, F. Mullally, J.J. Hermes, J.R. Thorstensen, M.C.P. Bours, M. Kilic, N. Prasert, S.E. Thompson, S. Kengkriangkrai, T.M. Tauris, T.R. Marsh, V.S. Dhillon

arxiv:1505.05144 v1 · 2015-05-19 · 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{JWFFWJM22BNCVDCI2SBRXIZTA3}

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	2026-05-18T01:46:14.568585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d8a5b259ad05a2a8c48d4831ba33306eb14c36b5fb38f1fcd9abd363726e521

Aliases

arxiv: 1505.05144 · arxiv_version: 1505.05144v1 · doi: 10.48550/arxiv.1505.05144 · pith_short_12: JWFFWJM22BNC · pith_short_16: JWFFWJM22BNCVDCI · pith_short_8: JWFFWJM2

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/JWFFWJM22BNCVDCI2SBRXIZTA3 \
  | 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: 4d8a5b259ad05a2a8c48d4831ba33306eb14c36b5fb38f1fcd9abd363726e521

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbad26ea66b46d9ab6029f8e83b97a18a737a162e5fba51c14e4fa4e76959d5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-19T20:00:27Z",
    "title_canon_sha256": "0d37831fe59333733aca85452e3e9318fc85bd55e6022e4e79c6219bcd54e33f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05144",
    "kind": "arxiv",
    "version": 1
  }
}