Pith Number

pith:WU7CYRSS

pith:2013:WU7CYRSS7GEURH7KQVJD7FAYTA

not attested not anchored not stored refs pending

A multi-wavelength view of cooling vs. AGN heating in the X-ray luminous cool-core of Abell 3581

A.C. Edge, A.C. Fabian, C.L. Sarazin, D.V. Lal, J.S. Sanders, M. Donahue, M. Sun, N. Werner, P.E.J. Nulsen, P. Salome, R.E.A. Canning, R.M. Johnstone, S. Giacintucci, S.W. Allen, T.E. Clarke

arxiv:1305.0050 v2 · 2013-04-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WU7CYRSS7GEURH7KQVJD7FAYTA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:50:13.805707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b53e2c4652f989489fea85523f9418981bc175c3cb4fd2f58f0564028fb49984

Aliases

arxiv: 1305.0050 · arxiv_version: 1305.0050v2 · doi: 10.48550/arxiv.1305.0050 · pith_short_12: WU7CYRSS7GEU · pith_short_16: WU7CYRSS7GEURH7K · pith_short_8: WU7CYRSS

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/WU7CYRSS7GEURH7KQVJD7FAYTA \
  | 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: b53e2c4652f989489fea85523f9418981bc175c3cb4fd2f58f0564028fb49984

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9ef83a22dc5b68d20cf4c3fc48d18d7a70f9ab0c2ed3d7fafde2a4b3fabac55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-30T22:54:24Z",
    "title_canon_sha256": "1da88385b76778522df7e1c386c798f6af7ebe8941854da3e72242b313ef3137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0050",
    "kind": "arxiv",
    "version": 2
  }
}