Pith Number

pith:FBLWU2Y5

pith:2021:FBLWU2Y5V6TKB2BLHX7RPJWLOD

not attested not anchored not stored refs pending

The eROSITA Final Equatorial-Depth Survey (eFEDS): Galaxy Clusters and Groups in Disguise

Andrea Merloni, Ang Liu, Duy Hoang, Esra Bulbul, Hector Ibarra-Medel, Jacob Ider Chitham, Jeremy S. Sanders, Johan Comparat, Johannes Buchner, Julien Wolf, Kirpal Nandra, Mara Salvato, Marcella Brusa, Marcus Brueggen, Matthias Klein, Miriam E. Ramos-Ceja, Riccardo Seppi, Scott F. Anderson, Teng Liu, Thomas Pasini, Tom Dwelly, Vittorio Ghirardini, Y. Emre Bahar, Yue Shen

arxiv:2110.09544 v2 · 2021-10-18 · 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{FBLWU2Y5V6TKB2BLHX7RPJWLOD}

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	2026-07-05T04:24:13.417400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28576a6b1dafa6a0e82b3dff17a6cb70e257c1f1288755632ce42bdd4be667ec

Aliases

arxiv: 2110.09544 · arxiv_version: 2110.09544v2 · doi: 10.48550/arxiv.2110.09544 · pith_short_12: FBLWU2Y5V6TK · pith_short_16: FBLWU2Y5V6TKB2BL · pith_short_8: FBLWU2Y5

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/FBLWU2Y5V6TKB2BLHX7RPJWLOD \
  | 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: 28576a6b1dafa6a0e82b3dff17a6cb70e257c1f1288755632ce42bdd4be667ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3d902eeade9a37b1bf21943f157ec69961cd935ba0bd936a2c33dbc4a1c4c70",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-10-18T18:00:08Z",
    "title_canon_sha256": "d1e363601f4e6b3359b6a5338af565aca254891c491f2e40d126de9337809b7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.09544",
    "kind": "arxiv",
    "version": 2
  }
}