Pith Number

pith:PPQXB3J7

pith:2019:PPQXB3J7352E34JZPAEWOZB6FY

not attested not anchored not stored refs pending

Test of Einstein equivalence principle near the Galactic center supermassive black hole

A. Amorim, A. Eckart, A. Jim\'enez Rosales, A. Sternberg, C. Straubmeier, E. Gendron, E. Sturm, E. Wieprecht, E. Wiezorrek, F. Eisenhauer, F. Gao, F. Vincent, F. Widmann, G. Duvert, G. Perrin, G. Rodr\'iguez-Coira, G. Rousset, I. Waisberg, J.-B. Le Bouquin, J. Dexter, J.P. Berger, K. Perraut, L. Jocou, L.J. Tacconi, M. Baub\"ock, M. Ebert, M. Habibi, M. Horrobin, N.M. F\"orster Schreiber, O. Pfuhl, O. Straub, P. Garcia, P. Kervella, P. L\'ena, P.T. de Zeeuw, R. Genzel, S. Gillessen, S. Hippler, S. Lacour, S. Rabien, S. Scheithauer, S. von Fellenberg, S. Yazici, Th. Henning, T. Ott, T. Paumard, V. Coud\'e du Foresto, V. Lapeyr\`ere, W. Brandner, X. Haubois, Y. Cl\'enet, Z. Hubert

arxiv:1902.04193 v2 · 2019-02-12 · astro-ph.GA · astro-ph.IM · 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{PPQXB3J7352E34JZPAEWOZB6FY}

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	2026-05-17T23:50:08.148237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7be170ed3fdf744df139780967643e2e0fbe3bef2e94921c12c7a1fd0f7590e6

Aliases

arxiv: 1902.04193 · arxiv_version: 1902.04193v2 · doi: 10.48550/arxiv.1902.04193 · pith_short_12: PPQXB3J7352E · pith_short_16: PPQXB3J7352E34JZ · pith_short_8: PPQXB3J7

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/PPQXB3J7352E34JZPAEWOZB6FY \
  | 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: 7be170ed3fdf744df139780967643e2e0fbe3bef2e94921c12c7a1fd0f7590e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c395daa4d64c0fd169fd770e4437814a11178c3efdf418d8ed13817e3a5c6083",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-12T00:35:58Z",
    "title_canon_sha256": "be05da086042444c3af0e5cc0a5ad5dbce46c8477b09c6b20ebb3c9dac19e862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04193",
    "kind": "arxiv",
    "version": 2
  }
}