Pith Number

pith:MQX4RQWJ

pith:2015:MQX4RQWJPMN2CKK4NWOXAJ4ZUP

not attested not anchored not stored refs pending

Four-Hair Relations for Differentially Rotating Neutron Stars in the Weak-Field Limit

Joseph Bretz, Kent Yagi, Nicolas Yunes

arxiv:1507.02278 v2 · 2015-07-08 · gr-qc · 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{MQX4RQWJPMN2CKK4NWOXAJ4ZUP}

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	2026-05-18T01:28:54.044647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

642fc8c2c97b1ba1295c6d9d702799a3e72422e42739363add65bcc4cfd130d0

Aliases

arxiv: 1507.02278 · arxiv_version: 1507.02278v2 · doi: 10.48550/arxiv.1507.02278 · pith_short_12: MQX4RQWJPMN2 · pith_short_16: MQX4RQWJPMN2CKK4 · pith_short_8: MQX4RQWJ

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/MQX4RQWJPMN2CKK4NWOXAJ4ZUP \
  | 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: 642fc8c2c97b1ba1295c6d9d702799a3e72422e42739363add65bcc4cfd130d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e53ef5e628ef363a2292520fe512240e796164c1e919bbf2b94580df023711a2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-07-08T20:00:23Z",
    "title_canon_sha256": "8eef6d32e833e23f1bacbfb1a89aa4eb4a00b9531b1e57066f88502ead15f737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02278",
    "kind": "arxiv",
    "version": 2
  }
}