Pith Number

pith:OAXSRIDA

pith:2020:OAXSRIDA3LINNXZY2FEW5BQS7D

not attested not anchored not stored refs pending

A proto-helium white dwarf stripped by a substellar companion via common-envelope ejection -- Uncovering the true nature of a candidate hypervelocity B-type star

Andreas Irrgang, Kareem El-Badry, Stephan Geier, Steven Bloemen, Thomas Kupfer, Ulrich Heber

arxiv:2007.03350 v4 · 2020-07-07 · astro-ph.SR · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OAXSRIDA3LINNXZY2FEW5BQS7D}

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	2026-07-05T02:50:39.848214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

702f28a060dad0d6df38d1496e8612f8d456e60b492157b15a1f7a94931f147f

Aliases

arxiv: 2007.03350 · arxiv_version: 2007.03350v4 · doi: 10.48550/arxiv.2007.03350 · pith_short_12: OAXSRIDA3LIN · pith_short_16: OAXSRIDA3LINNXZY · pith_short_8: OAXSRIDA

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/OAXSRIDA3LINNXZY2FEW5BQS7D \
  | 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: 702f28a060dad0d6df38d1496e8612f8d456e60b492157b15a1f7a94931f147f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a8da13e63ee315caf26c8cc7bb5228704d941f8a5fea70fea841030c82fab7a",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-07-07T11:28:28Z",
    "title_canon_sha256": "f8018056d1a99dcd56a36b5fce2b21574e60f2439c1fddec1da7856957106417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03350",
    "kind": "arxiv",
    "version": 4
  }
}