Pith Number

pith:J7A5XAWD

pith:2013:J7A5XAWDF3FBFSU5ASCKLL5VBP

not attested not anchored not stored refs pending

A Chandra view of the clumpy reflector at the heart of the Circinus galaxy

A. Marinucci, G. Matt, G. Miniutti, G. Risaliti, S. Bianchi

arxiv:1309.4456 v1 · 2013-09-17 · 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{J7A5XAWDF3FBFSU5ASCKLL5VBP}

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	2026-05-18T01:47:36.264892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fc1db82c32eca12ca9d0484a5afb50bde96c2c8da7e9c738a765dc17898a5fe

Aliases

arxiv: 1309.4456 · arxiv_version: 1309.4456v1 · doi: 10.48550/arxiv.1309.4456 · pith_short_12: J7A5XAWDF3FB · pith_short_16: J7A5XAWDF3FBFSU5 · pith_short_8: J7A5XAWD

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/J7A5XAWDF3FBFSU5ASCKLL5VBP \
  | 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: 4fc1db82c32eca12ca9d0484a5afb50bde96c2c8da7e9c738a765dc17898a5fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c73b3c83c7c3a94eb77b8712a9fb95ee87d0d6e8a1fcc6e46173a30d9d9616fe",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-17T20:00:03Z",
    "title_canon_sha256": "40cba5d2b3888233f587fad7ca3cac491586dfbf76f42c6036700e3e810bc243"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4456",
    "kind": "arxiv",
    "version": 1
  }
}