Pith Number

pith:B6XZJC2Z

pith:2018:B6XZJC2ZNJEMYPUW75TILVBTUD

not attested not anchored not stored refs pending

On the apparent absence of WR+NS systems: the curious case of WR124

A.A.C. Sander, H. Todt, J.A. Toala, J.M. Torrejon, L.M. Oskinova, M.A. Guerrero, R. Hainich, R. Ignace, T. Shenar, W.-R. Hamann, Y.-H. Chu

arxiv:1811.10691 v1 · 2018-11-26 · 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{B6XZJC2ZNJEMYPUW75TILVBTUD}

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	2026-05-17T23:58:36.156355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0faf948b596a48cc3e96ff6685d433a0cf3d87f9a6be08e02be6b2adea3e9ead

Aliases

arxiv: 1811.10691 · arxiv_version: 1811.10691v1 · doi: 10.48550/arxiv.1811.10691 · pith_short_12: B6XZJC2ZNJEM · pith_short_16: B6XZJC2ZNJEMYPUW · pith_short_8: B6XZJC2Z

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/B6XZJC2ZNJEMYPUW75TILVBTUD \
  | 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: 0faf948b596a48cc3e96ff6685d433a0cf3d87f9a6be08e02be6b2adea3e9ead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f48e330694607beec133a043b2283f95e07bd675bb0334118b838c252d6ee6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-11-26T21:13:41Z",
    "title_canon_sha256": "e7d9b70c35a257777617b2f58b36903be92a43cd418ec15ec8c85e0e38ef2445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.10691",
    "kind": "arxiv",
    "version": 1
  }
}