Pith Number

pith:EN6ZAKGX

pith:2013:EN6ZAKGXGWZYZI2CW5LBWMBPDD

not attested not anchored not stored refs pending

A volume-limited sample of X-ray galaxy groups and clusters - I. Radial entropy and cooling time profiles

Andy Fabian (IoA, Cambridge), Electra Panagoulia (IoA, Germany), Jeremy Sanders (MPIfE

arxiv:1312.0798 v1 · 2013-12-03 · 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{EN6ZAKGXGWZYZI2CW5LBWMBPDD}

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	2026-05-18T01:45:59.244267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

237d9028d735b38ca342b7561b302f18fccedfae4fb1b6660ce27ca44eb6c34e

Aliases

arxiv: 1312.0798 · arxiv_version: 1312.0798v1 · doi: 10.48550/arxiv.1312.0798 · pith_short_12: EN6ZAKGXGWZY · pith_short_16: EN6ZAKGXGWZYZI2C · pith_short_8: EN6ZAKGX

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/EN6ZAKGXGWZYZI2CW5LBWMBPDD \
  | 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: 237d9028d735b38ca342b7561b302f18fccedfae4fb1b6660ce27ca44eb6c34e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4956d8e163e5b2c13f4e7d7cf3e2237018dac33cde1365c98263ef14010710b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-12-03T12:36:46Z",
    "title_canon_sha256": "ea6254250f3ce0d0cae0fb2e400ffb8dfbd9e57e9f06edb0cfd5b4e7dccf4f79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0798",
    "kind": "arxiv",
    "version": 1
  }
}