Pith Number

pith:7RHVMPGR

pith:2023:7RHVMPGRVJFOV7XPUKCQ7I2OSB

not attested not anchored not stored refs pending

An Overview of Compact Star Populations and Some of Its Open Problems

A. Bernardo, J. E. Horvath (IAG-USP), L. M. de S\'a, L. S. Rocha, P. H. R. S. Moraes, R. R. A. Bachega

arxiv:2301.07780 v1 · 2023-01-18 · 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{7RHVMPGRVJFOV7XPUKCQ7I2OSB}

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	2026-07-05T05:34:19.301526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4f563cd1aa4aeafeefa2850fa34e9057bf88a1b0b00d456ae24755eaba3ee0

Aliases

arxiv: 2301.07780 · arxiv_version: 2301.07780v1 · doi: 10.48550/arxiv.2301.07780 · pith_short_12: 7RHVMPGRVJFO · pith_short_16: 7RHVMPGRVJFOV7XP · pith_short_8: 7RHVMPGR

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/7RHVMPGRVJFOV7XPUKCQ7I2OSB \
  | 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: fc4f563cd1aa4aeafeefa2850fa34e9057bf88a1b0b00d456ae24755eaba3ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d00ed2d1f05ad766a3538afe4b000e97d6eefcec69c47c52a5cc6dc086c6b2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-01-18T20:44:42Z",
    "title_canon_sha256": "d1c1ebd6bbf97b74566cf974437e1f037f65927a389292be11fa1e689b75ff11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.07780",
    "kind": "arxiv",
    "version": 1
  }
}