Pith Number

pith:DWRMWKK5

pith:2013:DWRMWKK5HE4NXIDOVODHUOAA7V

not attested not anchored not stored refs pending

Suzaku observations of the type 2 QSO in the central galaxy of the Phoenix cluster

Hiroshi Nakajima, Hiroshi Tsunemi, Katsuji Koyama, Kiyoshi Hayashida, Naohisa Anabuki, Shutaro Ueda

arxiv:1309.3672 v1 · 2013-09-14 · 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{DWRMWKK5HE4NXIDOVODHUOAA7V}

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	2026-05-18T01:47:41.755276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da2cb295d3938dba06eab867a3800fd7c7d51c35bf7e26a10b9dd5de7fd6bb8

Aliases

arxiv: 1309.3672 · arxiv_version: 1309.3672v1 · doi: 10.48550/arxiv.1309.3672 · pith_short_12: DWRMWKK5HE4N · pith_short_16: DWRMWKK5HE4NXIDO · pith_short_8: DWRMWKK5

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/DWRMWKK5HE4NXIDOVODHUOAA7V \
  | 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: 1da2cb295d3938dba06eab867a3800fd7c7d51c35bf7e26a10b9dd5de7fd6bb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af1fba62bd8acb6f7de8af2b4cbf443d85cac9242028e761c45dc7ff5c92e4f3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-14T14:14:07Z",
    "title_canon_sha256": "ad13e1ad757a1a6d7995c8c11330313172539e75d637aa7d503f17155dd0cf14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3672",
    "kind": "arxiv",
    "version": 1
  }
}