Pith Number

pith:TWO2PRRD

pith:2012:TWO2PRRDRUF5FSFF2DKG5J53UT

not attested not anchored not stored refs pending

The X-ray luminous cluster underlying the z = 1.04 quasar PKS1229-021

A. C. Fabian, C. S. Crawford, E. Belsole, G. B. Taylor, H. R. Russell, J. S. Sanders, K. M. Blundell, R. M. Johnstone

arxiv:1201.5395 v1 · 2012-01-25 · 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{TWO2PRRDRUF5FSFF2DKG5J53UT}

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	2026-05-18T01:58:41.844519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d9da7c6238d0bd2c8a5d0d46ea7bba4d8db08c5b4befcdfbb7a0df74c78eb04

Aliases

arxiv: 1201.5395 · arxiv_version: 1201.5395v1 · doi: 10.48550/arxiv.1201.5395 · pith_short_12: TWO2PRRDRUF5 · pith_short_16: TWO2PRRDRUF5FSFF · pith_short_8: TWO2PRRD

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/TWO2PRRDRUF5FSFF2DKG5J53UT \
  | 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: 9d9da7c6238d0bd2c8a5d0d46ea7bba4d8db08c5b4befcdfbb7a0df74c78eb04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ccc7c495cf5606cabab6854529d9105dd14e75142da19dc56747453ab967618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-25T21:13:57Z",
    "title_canon_sha256": "c7b7efc5e3f218c59e0c8b7a5978f4ea8bbca169440a9aa89ba987b6223a530a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5395",
    "kind": "arxiv",
    "version": 1
  }
}