Pith Number

pith:JJHHFAJF

pith:2011:JJHHFAJFKHWHAK5OWG6UQLPLUC

not attested not anchored not stored refs pending

HST Observations of the Stellar Distribution Near Sgr A*

F. Yusef-Zadeh, H. Bushouse, M. Wardle

arxiv:1109.2175 v1 · 2011-09-09 · 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{JJHHFAJFKHWHAK5OWG6UQLPLUC}

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	2026-05-18T02:00:36.876848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a4e72812551ec702baeb1bd482deba0b82cb909c19f6d7562c0c08707b86225

Aliases

arxiv: 1109.2175 · arxiv_version: 1109.2175v1 · doi: 10.48550/arxiv.1109.2175 · pith_short_12: JJHHFAJFKHWH · pith_short_16: JJHHFAJFKHWHAK5O · pith_short_8: JJHHFAJF

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/JJHHFAJFKHWHAK5OWG6UQLPLUC \
  | 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: 4a4e72812551ec702baeb1bd482deba0b82cb909c19f6d7562c0c08707b86225

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e69132ddfb95d61cdb823d7d69b41994b2c294ae71dc2146d9297db409c0409",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-09-09T23:29:31Z",
    "title_canon_sha256": "e831c438c01ad5e79110a983e772ec20064927349f8b6a2aa3b3bb2abaab7ac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2175",
    "kind": "arxiv",
    "version": 1
  }
}