Pith Number

pith:BBO5GF7N

pith:2021:BBO5GF7NVK5DFPDVAG5EVEXTZI

not attested not anchored not stored refs pending

The maximum mass of neutron stars may be higher than expected: an inference from binary systems

Brazil), IAG, J.E. Horvath, L.S. Rocha, P.H.R.S. Moraes (Astronomy, R.R.A. Bachega, S\~ao Paulo University USP

arxiv:2107.08822 v1 · 2021-07-15 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBO5GF7NVK5DFPDVAG5EVEXTZI}

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.

Cited by

1 paper in Pith

The mass of the neutron star in 4U 1820-30 revisited

Receipt and verification

First computed	2026-07-05T02:58:53.397784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

085dd317edaaba32bc7501ba4a92f3ca2fbefa26c7fa6921c8df7800e79d22b8

Aliases

arxiv: 2107.08822 · arxiv_version: 2107.08822v1 · doi: 10.48550/arxiv.2107.08822 · pith_short_12: BBO5GF7NVK5D · pith_short_16: BBO5GF7NVK5DFPDV · pith_short_8: BBO5GF7N

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/BBO5GF7NVK5DFPDVAG5EVEXTZI \
  | 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: 085dd317edaaba32bc7501ba4a92f3ca2fbefa26c7fa6921c8df7800e79d22b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5640fee40dd731ca985cc2b5744569704f51d0c5d45e040e04fa449b20f2d5f5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-07-15T00:35:37Z",
    "title_canon_sha256": "400323daf41f4b4bc0a2037811412cfac8cb35511eebd5bec8e4c34093440351"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.08822",
    "kind": "arxiv",
    "version": 1
  }
}