Pith Number

pith:2KFCMLGI

pith:1997:2KFCMLGI6GTULVABFP5OFQPBFI

not attested not anchored not stored refs pending

An Objective and Automatic Cluster Finder: An Improvement of the Matched-Filter Method

Kazuhiro Shimasaku, Mamoru Doi, Sadanori Okamura (The University of Tokyo), Wataru Kawasaki

arxiv:astro-ph/9705112 v2 · 1997-05-15 · 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{2KFCMLGI6GTULVABFP5OFQPBFI}

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	2026-07-04T16:03:00.773204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d28a262cc8f1a745d4012bfae2c1e12a02feb6730d8a4f7cba0d3b240068d59d

Aliases

arxiv: astro-ph/9705112 · arxiv_version: astro-ph/9705112v2 · doi: 10.48550/arxiv.astro-ph/9705112 · pith_short_12: 2KFCMLGI6GTU · pith_short_16: 2KFCMLGI6GTULVAB · pith_short_8: 2KFCMLGI

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/2KFCMLGI6GTULVABFP5OFQPBFI \
  | 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: d28a262cc8f1a745d4012bfae2c1e12a02feb6730d8a4f7cba0d3b240068d59d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a466ddc814cade836ed67e4f50885da3c43f31def8edab34fb4795acafd6801a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-05-15T15:11:47Z",
    "title_canon_sha256": "f3240d1c27b53575ae82793da100c0b0c66d8b8cbe53bafe18f68a85525cc781"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9705112",
    "kind": "arxiv",
    "version": 2
  }
}