Pith Number

pith:ZDJOAU77

pith:2013:ZDJOAU77QQNVGEL2HPRYNWI7QJ

not attested not anchored not stored refs pending

Discovery of an Outstanding Disk in the cD Galaxy of the Hydra A Cluster

Hiroyuki Hirashita, Kazuhiro Nakazawa, Kosuke Sato, Kyoko Matsushita, Masanori Nakamura, Motokazu Takizawa, Nobuhiro Okabe, Satoki Matsushita, Takayuki Tamura, Yutaka Fujita

arxiv:1310.3349 v2 · 2013-10-12 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDJOAU77QQNVGEL2HPRYNWI7QJ}

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	2026-05-18T01:47:06.193679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d2e053ff841b53117a3be386d91f82690796273dcbfbe54c596688af488ecc

Aliases

arxiv: 1310.3349 · arxiv_version: 1310.3349v2 · doi: 10.48550/arxiv.1310.3349 · pith_short_12: ZDJOAU77QQNV · pith_short_16: ZDJOAU77QQNVGEL2 · pith_short_8: ZDJOAU77

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/ZDJOAU77QQNVGEL2HPRYNWI7QJ \
  | 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: c8d2e053ff841b53117a3be386d91f82690796273dcbfbe54c596688af488ecc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd4ef1cca886201e3e1c6dafb0414c312e93ed05d4acb44951216aaac13cd1d2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-10-12T08:55:47Z",
    "title_canon_sha256": "ec928c1c63efa52729fc4188e3e29d650cf3f4a6848e8bd1e1ead66d12eb73a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3349",
    "kind": "arxiv",
    "version": 2
  }
}