Pith Number

pith:AOKQ2BAV

pith:2014:AOKQ2BAVVQMBLV5TJU7CLPBWZW

not attested not anchored not stored refs pending

On the origin of the central 1" hole in the stellar disk of Sgr A* and the Fermi gamma-ray bubbles

Farhad Yusef-Zadeh (Northwestern), Mark Wardle (Macquarie)

arxiv:1401.8250 v2 · 2014-01-31 · 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{AOKQ2BAVVQMBLV5TJU7CLPBWZW}

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	2026-05-18T01:44:53.959128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03950d0415ac1815d7b34d3e25bc36cda27e352cb89d3249ef29a97229c15e32

Aliases

arxiv: 1401.8250 · arxiv_version: 1401.8250v2 · doi: 10.48550/arxiv.1401.8250 · pith_short_12: AOKQ2BAVVQMB · pith_short_16: AOKQ2BAVVQMBLV5T · pith_short_8: AOKQ2BAV

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/AOKQ2BAVVQMBLV5TJU7CLPBWZW \
  | 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: 03950d0415ac1815d7b34d3e25bc36cda27e352cb89d3249ef29a97229c15e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3be7167a85b59064a76f1648f631b30fab800a469e0312017935f9e9d87d0498",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-31T18:31:32Z",
    "title_canon_sha256": "7c1e3dfaaca0f6face517c46f1cac718378c34d2309a8075bf0e37e3ea5b72b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.8250",
    "kind": "arxiv",
    "version": 2
  }
}