Pith Number

pith:T37SRD2C

pith:2017:T37SRD2CP2C34OAEQL6FYJKH4I

not attested not anchored not stored refs pending

Statistical Challenges in Fitting Stellar Orbits around the Supermassive Black Hole at the Galactic Center

Andrea Ghez (University of California Los Angeles), Aurelien Hees, Gregory Martinez, Joseph Ahn, Kelly Kosmo

arxiv:1701.02811 v1 · 2017-01-10 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T37SRD2CP2C34OAEQL6FYJKH4I}

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	2026-05-18T00:50:17.327450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9eff288f427e85be380482fc5c2547e21e62f4ace7ee281760a7776bbf52a3df

Aliases

arxiv: 1701.02811 · arxiv_version: 1701.02811v1 · doi: 10.48550/arxiv.1701.02811 · pith_short_12: T37SRD2CP2C3 · pith_short_16: T37SRD2CP2C34OAE · pith_short_8: T37SRD2C

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/T37SRD2CP2C34OAEQL6FYJKH4I \
  | 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: 9eff288f427e85be380482fc5c2547e21e62f4ace7ee281760a7776bbf52a3df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49f362a8c0d52d3715b286b1049ad008c360d5880b8e8eb3c04f604a07758883",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-10T23:43:55Z",
    "title_canon_sha256": "f3d421dcc992a030a63f3effc044959a22423e77754f82ac5d6b56f346acf6f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02811",
    "kind": "arxiv",
    "version": 1
  }
}