Pith Number

pith:TPC2O2FS

pith:2002:TPC2O2FS2V4G7YSPQWC7VA7GYK

not attested not anchored not stored refs pending

The REFLEX Galaxy Cluster Survey VII: Omega_m and sigma_8 from cluster abundance and large-scale clustering

Chris A. Collins, Hans B\"ohringer, Luigi Guzzo, Peter Schuecker

arxiv:astro-ph/0208251 v2 · 2002-08-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPC2O2FS2V4G7YSPQWC7VA7GYK}

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	2026-07-04T16:30:38.151806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bc5a768b2d5786fe24f8585fa83e6c2857e2627370277e218e1568987cd48e2

Aliases

arxiv: astro-ph/0208251 · arxiv_version: astro-ph/0208251v2 · doi: 10.48550/arxiv.astro-ph/0208251 · pith_short_12: TPC2O2FS2V4G · pith_short_16: TPC2O2FS2V4G7YSP · pith_short_8: TPC2O2FS

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/TPC2O2FS2V4G7YSPQWC7VA7GYK \
  | 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: 9bc5a768b2d5786fe24f8585fa83e6c2857e2627370277e218e1568987cd48e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c871946b927279b74703b2c76998e7a1ece225bee891f18880dbab5a364cddb5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-13T07:22:47Z",
    "title_canon_sha256": "75c5dab7d1d6ae891262c16d4bb3d648fd6ec3b53ee9fa4d662d8989133f8786"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208251",
    "kind": "arxiv",
    "version": 2
  }
}