Pith Number

pith:OPNVQNJ4

pith:2026:OPNVQNJ4ORJ6RJLNGQCJVQAHZ7

not attested not anchored not stored refs pending

A NICER view of the millisecond pulsar PSR J2124$-$3358: evidence for a helium atmosphere

Anna L. Watts, Bas Dorsman, Christine Kazantsev, Daniela Huppenkothen, Denis Gonz\'alez-Caniulef, Devarshi Choudhury, Gilles Theureau, Isma\"el Cognard, Lucas Guillemot, Lucien Mauviard, Mariska Hoogkamer, Pierre Stammler, Sebastien Guillot, Tuomo Salmi, Yves Kini

arxiv:2607.03721 v1 · 2026-07-04 · 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{OPNVQNJ4ORJ6RJLNGQCJVQAHZ7}

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	2026-07-07T02:18:03.668337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73db58353c7453e8a56d34049ac007cffa8d34e07bdc3413e8f4ed669d158bd7

Aliases

arxiv: 2607.03721 · arxiv_version: 2607.03721v1 · doi: 10.48550/arxiv.2607.03721 · pith_short_12: OPNVQNJ4ORJ6 · pith_short_16: OPNVQNJ4ORJ6RJLN · pith_short_8: OPNVQNJ4

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/OPNVQNJ4ORJ6RJLNGQCJVQAHZ7 \
  | 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: 73db58353c7453e8a56d34049ac007cffa8d34e07bdc3413e8f4ed669d158bd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "269de22835abe0b1140c5cc673c3e3f9b2a26e0932d4401d4d79afb927ee8b75",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-04T06:04:04Z",
    "title_canon_sha256": "bfa02542486bd0e0270231f06a999cd7876871b49aef2cabe09aa9498e53900e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.03721",
    "kind": "arxiv",
    "version": 1
  }
}