Pith Number

pith:UBK5PYJD

pith:2013:UBK5PYJD3WWGVJUT5Z6QTQYBBQ

not attested not anchored not stored refs pending

The hard X-ray spectrum of NGC 1365: scattered light, not black hole spin

L. Miller, T.J. Turner

arxiv:1303.4309 v2 · 2013-03-18 · astro-ph.HE · 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{UBK5PYJD3WWGVJUT5Z6QTQYBBQ}

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	2026-05-18T03:17:11.481038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a055d7e123ddac6aa693ee7d09c3010c3fbd3bc1a8a282d586bf16117fb664b5

Aliases

arxiv: 1303.4309 · arxiv_version: 1303.4309v2 · doi: 10.48550/arxiv.1303.4309 · pith_short_12: UBK5PYJD3WWG · pith_short_16: UBK5PYJD3WWGVJUT · pith_short_8: UBK5PYJD

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/UBK5PYJD3WWGVJUT5Z6QTQYBBQ \
  | 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: a055d7e123ddac6aa693ee7d09c3010c3fbd3bc1a8a282d586bf16117fb664b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d99854942d335e5e62c0902f1cd42586c217f46c2b504fb614cf2707ac47a8a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-18T16:30:26Z",
    "title_canon_sha256": "500b0d4fb691dd57553904ebbf8ed3dec77c888fb16b00b3f2c6daf284462b64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4309",
    "kind": "arxiv",
    "version": 2
  }
}