Pith Number

pith:HF2KEVT7

pith:2018:HF2KEVT7L5ZCMK3A2ZSPJPTQSD

not attested not anchored not stored refs pending

Neural Gas based classification of Globular Clusters

Giuseppe Angora, Giuseppe Riccio, Massimo Brescia, Maurizio Paolillo, Stefano Cavuoti, Thomas H. Puzia

arxiv:1802.08086 v1 · 2018-02-21 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HF2KEVT7L5ZCMK3A2ZSPJPTQSD}

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	2026-05-18T00:10:54.545956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3974a2567f5f72262b60d664f4be7090dc71fd91ccfb9215e1df2c3c734a9c11

Aliases

arxiv: 1802.08086 · arxiv_version: 1802.08086v1 · doi: 10.48550/arxiv.1802.08086 · pith_short_12: HF2KEVT7L5ZC · pith_short_16: HF2KEVT7L5ZCMK3A · pith_short_8: HF2KEVT7

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/HF2KEVT7L5ZCMK3A2ZSPJPTQSD \
  | 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: 3974a2567f5f72262b60d664f4be7090dc71fd91ccfb9215e1df2c3c734a9c11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6446830ccc8d5bdc4eda00181a3bc12d56019776dde3d26e60b1690adb67ffc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-21T17:58:18Z",
    "title_canon_sha256": "98d9ac9afa27fb7f3f27562e462670458f2ae3a57f2fe076ae28cce38a725267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08086",
    "kind": "arxiv",
    "version": 1
  }
}