Pith Number

pith:QDVKU5T5

pith:2011:QDVKU5T5XY2CY5PJ3MLGS54XE7

not attested not anchored not stored refs pending

An X-ray underluminous cluster of galaxies in the 4Ms CDFS observations

A. Fontana, A. Grazian, A. Romano, D. Trevese, E. Piconcelli, F. Fiore, L. Pentericci, M. Castellano, N. Menci, P. Santini, S. Salimbeni

arxiv:1103.4478 v2 · 2011-03-23 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDVKU5T5XY2CY5PJ3MLGS54XE7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:02:47.881994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80eaaa767dbe342c75e9db1669779727c6a65d0b31e7ac92ce4460d8691a7cf5

Aliases

arxiv: 1103.4478 · arxiv_version: 1103.4478v2 · doi: 10.48550/arxiv.1103.4478 · pith_short_12: QDVKU5T5XY2C · pith_short_16: QDVKU5T5XY2CY5PJ · pith_short_8: QDVKU5T5

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/QDVKU5T5XY2CY5PJ3MLGS54XE7 \
  | 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: 80eaaa767dbe342c75e9db1669779727c6a65d0b31e7ac92ce4460d8691a7cf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "590d71e4299307b9ae1dd658d17bdbd7d4ae3294b5cded4dee44b1118f796afd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-23T10:04:19Z",
    "title_canon_sha256": "12069f0f5f2ed51b5e4228368e8efc7e3267a111dcea05f72e1c155928a5f437"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4478",
    "kind": "arxiv",
    "version": 2
  }
}