Pith Number

pith:PU4DM6VR

pith:2024:PU4DM6VRHMTXEX6QPRDEFMHVOG

not attested not anchored not stored refs pending

Measuring the Spin of the Galactic Center Supermassive Black Hole with Two Pulsars

Lijing Shao, Zexin Hu

arxiv:2408.00245 v2 · 2024-08-01 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PU4DM6VRHMTXEX6QPRDEFMHVOG}

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

Galactic Centre Pulsars with the SKAO

Receipt and verification

First computed	2026-07-05T09:45:13.064442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d38367ab13b27725fd07c4642b0f571b0c7bd699823e000351d2a952149c01f

Aliases

arxiv: 2408.00245 · arxiv_version: 2408.00245v2 · doi: 10.48550/arxiv.2408.00245 · pith_short_12: PU4DM6VRHMTX · pith_short_16: PU4DM6VRHMTXEX6Q · pith_short_8: PU4DM6VR

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/PU4DM6VRHMTXEX6QPRDEFMHVOG \
  | 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: 7d38367ab13b27725fd07c4642b0f571b0c7bd699823e000351d2a952149c01f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "074c0a9af0a9c0c7334222f746d238a50ebc31093b5688f26a8597063fc5d043",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2024-08-01T02:51:04Z",
    "title_canon_sha256": "143690de61003fa068ec18e8a9dd4f1533cc799e4b8be21f21b0518289618533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.00245",
    "kind": "arxiv",
    "version": 2
  }
}