Pith Number

pith:FBL5RVM5

pith:2015:FBL5RVM5YR5NXRWASQKP2NVCEA

not attested not anchored not stored refs pending

The XXL Survey: XII. Optical spectroscopy of X-ray-selected clusters and the frequency of AGN in superclusters

A. Elyiv, B. Altieri, B. Poggianti, C. Adami, C. Horellou, E. Koulouridis, F. Gastaldello, F. Pacaud, I. Valchanov, J. Surdej, M. Pierre, M. Plionis, O. Melnyk, S. Fotopoulou, T. Sadibekova, Y. Jaff\'e

arxiv:1512.04342 v2 · 2015-12-14 · astro-ph.GA · 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{FBL5RVM5YR5NXRWASQKP2NVCEA}

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	2026-05-18T01:12:30.293827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2857d8d59dc47adbc6c09414fd36a22024ee1405f0420d72a7bdda3d47447a8c

Aliases

arxiv: 1512.04342 · arxiv_version: 1512.04342v2 · doi: 10.48550/arxiv.1512.04342 · pith_short_12: FBL5RVM5YR5N · pith_short_16: FBL5RVM5YR5NXRWA · pith_short_8: FBL5RVM5

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/FBL5RVM5YR5NXRWASQKP2NVCEA \
  | 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: 2857d8d59dc47adbc6c09414fd36a22024ee1405f0420d72a7bdda3d47447a8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "222a00f52e32877bede57bff4734f8f7268c575bd60bde2b5faf18eae2affeca",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-12-14T14:42:16Z",
    "title_canon_sha256": "89ec6dd3dad24990ec428ae1973d87d5f1b67a999f887095884dff64c51bda04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04342",
    "kind": "arxiv",
    "version": 2
  }
}