Pith Number

pith:4MTVQ6IT

pith:2000:4MTVQ6ITZSBCQ725HYOXYPOCVH

not attested not anchored not stored refs pending

Keck Diffraction-Limited Imaging of the Young Quadruple Star System HD 98800

(2) University of Florida, (3) W. M. Keck Observatory), A. M. Ghez (1), C. M. Telesco (2), D. S. Acton (3), Gainesville, L. Prato (1), O. Lai (3), P. Stomski (3) ((1) UCLA, P. Wizinowich (3), R. K. Pina (2), R. S. Fisher (2)

arxiv:astro-ph/0011135 v2 · 2000-11-07 · 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{4MTVQ6ITZSBCQ725HYOXYPOCVH}

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	2026-07-04T16:17:33.616303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e327587913cc82287f5d3e1d7c3dc2a9c22ed88b34d7d773b04c88a56dc71efd

Aliases

arxiv: astro-ph/0011135 · arxiv_version: astro-ph/0011135v2 · doi: 10.48550/arxiv.astro-ph/0011135 · pith_short_12: 4MTVQ6ITZSBC · pith_short_16: 4MTVQ6ITZSBCQ725 · pith_short_8: 4MTVQ6IT

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/4MTVQ6ITZSBCQ725HYOXYPOCVH \
  | 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: e327587913cc82287f5d3e1d7c3dc2a9c22ed88b34d7d773b04c88a56dc71efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6056158c00d99bad9cf085e2f88a6981a0234fa22788e0c4cbec14621104ef6c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-11-07T02:40:10Z",
    "title_canon_sha256": "531c002bd33b71fef0148b1a5dc0a664027514bf26b48115a3ea6d68c10a93d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0011135",
    "kind": "arxiv",
    "version": 2
  }
}