Pith Number

pith:QVRO6HLS

pith:2026:QVRO6HLS5QU65IN4F7KZWPWDD4

not attested not anchored not stored refs pending

Discovery of a star sensitive to the spin of Sgr A*

A. Berdeu, A. Burkert, A. Drescher, A. Foschi, A. Generozov, A. Kaufer, A. Merand, B. Lopez, C. Correia, C. Paladini, C. Straubmeier, C. Sykes, D. Calderon, D.C. Ribeiro, D. Defrere, D. Lutz, D. Santos, E. Sturm, F. Eisenhauer, F. Gonte, F. Mang, F. Millour, F. Soulez, F. Vincent, G. Bourdarot, G. Perrin, G. Zins, H.B. Perets, H. Feuchtgruber, H. Nowacki, I. Urso, J.-B. Le Bouquin, J. Cuadra, J. Kammerer, J. Kolb, J. Leftley, J. Osorno, J.-P. Berger, J. Sanchez Bermudez, J. Sauter, J. Scigliuto, J. Shangguan, J. Stadler, J. Woillez, K. Abd El Dayem, K. Perraut, L. Delit, L. Esteras Otal, L.J. Tacconi, L. Kreidberg, L. Labadie, M. Fabricius, M. Houlle, M. Montarges, M. Nowak, M. Sadun Bordoni, M. Subroweit, N. Aimar, N.M. Foerster Schreiber, N. Morujao, N. Pourre, O. Lai, P. Amaro-Seoane, P. Garcia, P. Kervella, P.O. Petrucci, P. Thevenet, R. Abuter, R. Davies, R. Garcia Lopez, R. Genzel, R. Laugier, R. Petrov, R. Sari, S.F. Hoenig, S. Gillessen, S. Joharle, S. Lacour, S. Oberti, S. Rabien, S. Robbe-Dubois, S. Scheithauer, T. Ott, T. Paumard, T. Piran, T.T. Shimizu, W. Brandner, X. Haubois

arxiv:2607.12664 v1 · 2026-07-14 · astro-ph.GA · 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{QVRO6HLS5QU65IN4F7KZWPWDD4}

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	2026-07-15T01:22:10.915962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8562ef1d72ec29eea1bc2fd59b3ec31f2282677cf8fb5d2c70df32ede2cfc3cc

Aliases

arxiv: 2607.12664 · arxiv_version: 2607.12664v1 · doi: 10.48550/arxiv.2607.12664 · pith_short_12: QVRO6HLS5QU6 · pith_short_16: QVRO6HLS5QU65IN4 · pith_short_8: QVRO6HLS

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/QVRO6HLS5QU65IN4F7KZWPWDD4 \
  | 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: 8562ef1d72ec29eea1bc2fd59b3ec31f2282677cf8fb5d2c70df32ede2cfc3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6b82a5e7770033024a5e145c3374d5119857b9c6c8c12645822fdbf25a0e322",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-14T11:46:53Z",
    "title_canon_sha256": "68b6bf9cf13cae92c7953390bd5f8bb7803467bdd977d874eef44f171fb527ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12664",
    "kind": "arxiv",
    "version": 1
  }
}