Pith Number

pith:WBHKIJDO

pith:2013:WBHKIJDOXS7437UNORR7LL3Y3E

not attested not anchored not stored refs pending

Kinematics of the intermediate mass black hole candidate HLX-1

George K. T. Hau (ESO-Santiago), Manfred W. Pakull (Strasbourg University), Roberto Soria (ICRAR-Curtin)

arxiv:1304.1669 v1 · 2013-04-05 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WBHKIJDOXS7437UNORR7LL3Y3E}

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	2026-05-18T01:50:42.526384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b04ea4246ebcbfcdfe8d7463f5af78d90b35e3b9d9025f42f222fda8e6919563

Aliases

arxiv: 1304.1669 · arxiv_version: 1304.1669v1 · doi: 10.48550/arxiv.1304.1669 · pith_short_12: WBHKIJDOXS74 · pith_short_16: WBHKIJDOXS7437UN · pith_short_8: WBHKIJDO

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/WBHKIJDOXS7437UNORR7LL3Y3E \
  | 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: b04ea4246ebcbfcdfe8d7463f5af78d90b35e3b9d9025f42f222fda8e6919563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e85e2859285c25e29202fa517154e910a79d686fb0533d03b3ae6234aed0725",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-05T10:31:28Z",
    "title_canon_sha256": "5267dc5a306bfb378b65b4251f3e5235424856e001d773668b81510457629aec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1669",
    "kind": "arxiv",
    "version": 1
  }
}