Pith Number

pith:NGWPEWU2

pith:2016:NGWPEWU2KJSYKQYDQMZISNDYLL

not attested not anchored not stored refs pending

The LBV HR Car has a partner: Discovery of a companion with the VLTI

Andrea Mehner, Antoine Merand, Christophe Martayan, Dimitri Pourbaix, Henri M.J. Boffin, Jean-Baptiste LeBouquin, Sylvain Guieu, Thomas Rivinius, Willem-Jan de Wit

arxiv:1607.07724 v1 · 2016-07-26 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGWPEWU2KJSYKQYDQMZISNDYLL}

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	2026-05-18T01:03:44.923597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69acf25a9a526585430383328934785acd0b8956061179920355a82130c6fecc

Aliases

arxiv: 1607.07724 · arxiv_version: 1607.07724v1 · doi: 10.48550/arxiv.1607.07724 · pith_short_12: NGWPEWU2KJSY · pith_short_16: NGWPEWU2KJSYKQYD · pith_short_8: NGWPEWU2

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/NGWPEWU2KJSYKQYDQMZISNDYLL \
  | 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: 69acf25a9a526585430383328934785acd0b8956061179920355a82130c6fecc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acaaf5175a65528e9547b15df983eefc53b4db5a7c5db2e6080c20a0669b9ac6",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-07-26T14:33:33Z",
    "title_canon_sha256": "7c74fc6b7cef1748deb17345fa683cb62d16a13b6a1d13d3ed764890e662c867"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07724",
    "kind": "arxiv",
    "version": 1
  }
}