Pith Number

pith:R6X4IM64

pith:2018:R6X4IM64R2NJCOMHUXB3GGPX7Y

not attested not anchored not stored refs pending

Optical identification of the binary companion to the millisecond PSR J2302+4442 with the Gran Telescopio Canarias

A. Cabrera-Lavers, A. V. Karpova, A. Yu. Kirichenko, D. A. Zyuzin, S. Dai, S. V. Zharikov, Yu. A. Shibanov

arxiv:1807.09442 v1 · 2018-07-25 · astro-ph.SR · 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{R6X4IM64R2NJCOMHUXB3GGPX7Y}

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	2026-05-18T00:08:37.858765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fafc433dc8e9a913987a5c3b319f7fe1c37e07780673d08fc58524e4d61f967

Aliases

arxiv: 1807.09442 · arxiv_version: 1807.09442v1 · doi: 10.48550/arxiv.1807.09442 · pith_short_12: R6X4IM64R2NJ · pith_short_16: R6X4IM64R2NJCOMH · pith_short_8: R6X4IM64

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/R6X4IM64R2NJCOMHUXB3GGPX7Y \
  | 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: 8fafc433dc8e9a913987a5c3b319f7fe1c37e07780673d08fc58524e4d61f967

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df46024f3dee8c202e99da0acfd04ff960843c8a603bbe3be02a454d022677e1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-25T05:55:07Z",
    "title_canon_sha256": "55c713ffade5deea8761f93974780621c4f444cedb45bce57ddd2aa301ccc227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09442",
    "kind": "arxiv",
    "version": 1
  }
}