Pith Number

pith:XEE57US4

pith:2026:XEE57US4Q6LVL5KCMYQQQCKM65

not attested not anchored not stored refs pending

S301 and friends: Measuring the spin of Sgr A*

A. Burkert, B. Aytac, D. Calderon, D.C. Ribeiro, F. Eisenhauer, F. Mang, G. Bourdarot, H.B. Perets, J. Cuadra, M. Sadun Bordoni, P. Amaro-Seoane, R. Genzel, R. Sari, S. Gillessen, S. Joharle, T. Naab, T. Ott, T. Piran

arxiv:2607.24931 v1 · 2026-07-27 · astro-ph.GA · 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{XEE57US4Q6LVL5KCMYQQQCKM65}

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	2026-07-29T00:24:52.525384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b909dfd25c879755f542662108094cf764aa1ec32ac8f463b5e56a449a4c1110

Aliases

arxiv: 2607.24931 · arxiv_version: 2607.24931v1 · doi: 10.48550/arxiv.2607.24931 · pith_short_12: XEE57US4Q6LV · pith_short_16: XEE57US4Q6LVL5KC · pith_short_8: XEE57US4

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/XEE57US4Q6LVL5KCMYQQQCKM65 \
  | 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: b909dfd25c879755f542662108094cf764aa1ec32ac8f463b5e56a449a4c1110

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e274d791b458f51155d8eba4f27217ddd3c95ae90dec5f5db713f33f8b71cc6",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-27T18:00:05Z",
    "title_canon_sha256": "e6b37a05335bb9b0d32834e57604089cefe73dba81d532fe8097384b10b7033d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24931",
    "kind": "arxiv",
    "version": 1
  }
}