Pith Number

pith:VNMTMZ6W

pith:2021:VNMTMZ6WVBWJQOPGWBUMPPAMVU

not attested not anchored not stored refs pending

Testing the Non-circularity of the Spacetime around Sagittarius A* with Orbiting Pulsars

Atsushi Naruko, Chul-Moon Yoo, Daisuke Yamauchi, Keitaro Takahashi, Yohsuke Takamori, Yusuke Sakurai

arxiv:2108.13026 v2 · 2021-08-30 · gr-qc · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNMTMZ6WVBWJQOPGWBUMPPAMVU}

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	2026-07-05T04:03:50.606745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab593667d6a86c9839e6b068c7bc0cad23e0d019be890189983eb9562eb8c8d3

Aliases

arxiv: 2108.13026 · arxiv_version: 2108.13026v2 · doi: 10.48550/arxiv.2108.13026 · pith_short_12: VNMTMZ6WVBWJ · pith_short_16: VNMTMZ6WVBWJQOPG · pith_short_8: VNMTMZ6W

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/VNMTMZ6WVBWJQOPGWBUMPPAMVU \
  | 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: ab593667d6a86c9839e6b068c7bc0cad23e0d019be890189983eb9562eb8c8d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76d1777f4bdf1d1af3dd3d895a7103e38f8997944db150ba2f03045550dd248b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-30T07:28:32Z",
    "title_canon_sha256": "b2914316d6e26743dc573bc7aed94075c770991a8443040f0683eab0ded07850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13026",
    "kind": "arxiv",
    "version": 2
  }
}