Pith Number

pith:LD5J3UKS

pith:2013:LD5J3UKS77TGKLZC376GEHWZUN

not attested not anchored not stored refs pending

The galaxy population of the complex cluster system Abell 3921

Antonaldo Diaferio, Asmus B\"ohm, Chiara Ferrari, Christophe Benoist, Florian Pranger, Jarle Brinchmann, Richard Hunstead, Sabine Schindler, Sophie Maurogordato

arxiv:1305.4804 v4 · 2013-05-21 · 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{LD5J3UKS77TGKLZC376GEHWZUN}

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	2026-05-18T02:48:02.406897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58fa9dd152ffe6652f22dffc621ed9a37f6da6a615d28a93c942380d5d95258e

Aliases

arxiv: 1305.4804 · arxiv_version: 1305.4804v4 · doi: 10.48550/arxiv.1305.4804 · pith_short_12: LD5J3UKS77TG · pith_short_16: LD5J3UKS77TGKLZC · pith_short_8: LD5J3UKS

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/LD5J3UKS77TGKLZC376GEHWZUN \
  | 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: 58fa9dd152ffe6652f22dffc621ed9a37f6da6a615d28a93c942380d5d95258e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "accda246e2056d38c6a17524f36ef005b4e60b1ee4371f422f7c0d8058aa291b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-21T12:54:22Z",
    "title_canon_sha256": "4a1beff33f109d4fd8b0b0c840e1e0aa050b4195ec02a1539144321fcad7aea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4804",
    "kind": "arxiv",
    "version": 4
  }
}