Pith Number

pith:FVTNMURK

pith:1998:FVTNMURKWQ43CCO7UNC2CKLNH3

not attested not anchored not stored refs pending

Proper Motions of Ionized Gas at the Galactic Center: Evidence for Unbound Orbiting Gas

D.A. Roberts, F. Yusef-Zadeh, J. Biretta

arxiv:astro-ph/9803231 v1 · 1998-03-19 · 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{FVTNMURKWQ43CCO7UNC2CKLNH3}

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	2026-05-18T01:07:37.713491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d66d6522ab439b109dfa345a1296d3ee8741a72b7794236c53c82556d2bbfb1

Aliases

arxiv: astro-ph/9803231 · arxiv_version: astro-ph/9803231v1 · doi: 10.48550/arxiv.astro-ph/9803231 · pith_short_12: FVTNMURKWQ43 · pith_short_16: FVTNMURKWQ43CCO7 · pith_short_8: FVTNMURK

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/FVTNMURKWQ43CCO7UNC2CKLNH3 \
  | 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: 2d66d6522ab439b109dfa345a1296d3ee8741a72b7794236c53c82556d2bbfb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b97d89c4df988307c2cbbd816d7c7548d87cdd686c39f9344445de92c3540d0a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-19T18:14:26Z",
    "title_canon_sha256": "fea31adc29758777ac26187874cc92f182673f5ede96784de23902655a240d57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803231",
    "kind": "arxiv",
    "version": 1
  }
}