Pith Number

pith:X2ALDJRN

pith:2008:X2ALDJRNOSCRHS3N7O4SD5MYNR

not attested not anchored not stored refs pending

A Disk of Young Stars at the Galactic Center as Determined by Individual Stellar Orbits

A. M. Ghez, E. E. Becklin, J. R. Lu, K. Matthews, M. R. Morris, S. D. Hornstein

arxiv:0808.3818 v1 · 2008-08-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2ALDJRNOSCRHS3N7O4SD5MYNR}

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	2026-05-18T04:29:32.963227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be80b1a62d748513cb6dfbb921f5986c66a3f725f11629347e42b8e21d5463db

Aliases

arxiv: 0808.3818 · arxiv_version: 0808.3818v1 · doi: 10.48550/arxiv.0808.3818 · pith_short_12: X2ALDJRNOSCR · pith_short_16: X2ALDJRNOSCRHS3N · pith_short_8: X2ALDJRN

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/X2ALDJRNOSCRHS3N7O4SD5MYNR \
  | 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: be80b1a62d748513cb6dfbb921f5986c66a3f725f11629347e42b8e21d5463db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c270e307b97d66aa272b77d917932182b980be7530e89340c665787347c137ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-28T02:34:21Z",
    "title_canon_sha256": "bf7184c33b452eddc573708deb0532666bc6c436910aeed5fa2abe6ac46d111e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.3818",
    "kind": "arxiv",
    "version": 1
  }
}