Pith Number

pith:DIKGHGS4

pith:2018:DIKGHGS4UE2TEZJ27YGBIPRKYL

not attested not anchored not stored refs pending

The XXL Survey XXVIII. Galaxy luminosity functions of the XXL-N clusters

A. Cappi, B. Poggianti, C. Adami, C. Benoist, E. Koulouridis, F. Gastaldello, F. Pacaud, L. Chiappetti, M. E. Ramos-Ceja, M. Pierre, M. Ricci, M. Sereno, R. Adam, S. Arnouts, S. Maurogordato, V. Guglielmo

arxiv:1807.03207 v2 · 2018-07-09 · 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{DIKGHGS4UE2TEZJ27YGBIPRKYL}

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	2026-05-18T00:00:18.944632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a14639a5ca13532653afe0c143e2ac2e399439ab97fcf74384ca4a0d0ef7d77

Aliases

arxiv: 1807.03207 · arxiv_version: 1807.03207v2 · doi: 10.48550/arxiv.1807.03207 · pith_short_12: DIKGHGS4UE2T · pith_short_16: DIKGHGS4UE2TEZJ2 · pith_short_8: DIKGHGS4

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/DIKGHGS4UE2TEZJ27YGBIPRKYL \
  | 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: 1a14639a5ca13532653afe0c143e2ac2e399439ab97fcf74384ca4a0d0ef7d77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8aaea8fa8a0e30a92ff0e42a458444438eea9ab35c433c204f98416e41912ee",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-09T14:57:47Z",
    "title_canon_sha256": "1ff8dd51c5ef4e4cec05fd175b685633195007e3d49e70a43769b183d9ddb235"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03207",
    "kind": "arxiv",
    "version": 2
  }
}