Pith Number

pith:VREX5CXI

pith:2019:VREX5CXI7ALSZPG4DHR7VRQCY6

not attested not anchored not stored refs pending

The Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole

A. K. Gautam, A.M. Ghez, Aurelien Hees, E. Becklin, E. Gallego-Cano, Jessica R. Lu, K. Matthews, M.R. Morris, M. Service, M. W. Hosek Jr., R. Schodel, Siyao Jia, S .Sakai, T.Do

arxiv:1902.02491 v1 · 2019-02-07 · 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{VREX5CXI7ALSZPG4DHR7VRQCY6}

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	2026-05-17T23:52:01.252673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac497e8ae8f8172cbcdc19e3fac602c78538016b724c44a761b74e28cea46794

Aliases

arxiv: 1902.02491 · arxiv_version: 1902.02491v1 · doi: 10.48550/arxiv.1902.02491 · pith_short_12: VREX5CXI7ALS · pith_short_16: VREX5CXI7ALSZPG4 · pith_short_8: VREX5CXI

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/VREX5CXI7ALSZPG4DHR7VRQCY6 \
  | 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: ac497e8ae8f8172cbcdc19e3fac602c78538016b724c44a761b74e28cea46794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6493380cca5e4b18bba2d8955950d37840f0bd800e9c89b3b7638aeed6366d81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-07T06:36:04Z",
    "title_canon_sha256": "0d3a6e18d8effd890b57847989bb53a5b97729ed426bc2b133972e92df8a3169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02491",
    "kind": "arxiv",
    "version": 1
  }
}