Pith Number

pith:55JPDOKJ

pith:2021:55JPDOKJVPVL7TP3K3RY3LXGEA

not attested not anchored not stored refs pending

The XMM Cluster Survey: An independent demonstration of the fidelity of the eFEDS galaxy cluster data products and implications for future studies

A. K. Romer, C. A. Collins, D. J. Turner, E. W. Upsdell, J. P. Stott, M. Hilton, M. Klein, M. Sahl\'en, P. A. Giles, P. T. P. Viana, R. G. Mann, R. Wilkinson, S. Bhargava

arxiv:2109.11807 v2 · 2021-09-24 · astro-ph.CO · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55JPDOKJVPVL7TP3K3RY3LXGEA}

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	2026-07-05T04:56:59.885310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef52f1b949abeabfcdfb56e38daee620012c5d4bf0290d21db8ac5ba2a3716ea

Aliases

arxiv: 2109.11807 · arxiv_version: 2109.11807v2 · doi: 10.48550/arxiv.2109.11807 · pith_short_12: 55JPDOKJVPVL · pith_short_16: 55JPDOKJVPVL7TP3 · pith_short_8: 55JPDOKJ

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/55JPDOKJVPVL7TP3K3RY3LXGEA \
  | 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: ef52f1b949abeabfcdfb56e38daee620012c5d4bf0290d21db8ac5ba2a3716ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "637edb434c65eb2ed47887515068c6cfd9d284bce945490e60cd9e547de21829",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-09-24T08:39:17Z",
    "title_canon_sha256": "841c359407dcbc171956965279e08314d5f640e344d25047c65454fc57a8af5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.11807",
    "kind": "arxiv",
    "version": 2
  }
}