Pith Number

pith:55QHJBL3

pith:2018:55QHJBL3SC64P4POOYBDSZHOC4

not attested not anchored not stored refs pending

A Machine Learning Approach to Galaxy-LSS Classification I: Imprints on Halo Merger Trees

James M. Flegal, Jianan Hui, Miguel A. Aragon-Calvo, Xinping Cui

arxiv:1803.11156 v1 · 2018-03-29 · astro-ph.GA · 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{55QHJBL3SC64P4POOYBDSZHOC4}

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	2026-05-18T00:18:48.820105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef6074857b90bdc7f1ee76023964ee1708d2ffc0663818a74d2a7485403ffe8f

Aliases

arxiv: 1803.11156 · arxiv_version: 1803.11156v1 · doi: 10.48550/arxiv.1803.11156 · pith_short_12: 55QHJBL3SC64 · pith_short_16: 55QHJBL3SC64P4PO · pith_short_8: 55QHJBL3

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/55QHJBL3SC64P4POOYBDSZHOC4 \
  | 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: ef6074857b90bdc7f1ee76023964ee1708d2ffc0663818a74d2a7485403ffe8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8de7690e06399670ce84579c6959475979dc94e2aeaf8b235ef0da95aca6c11",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-29T17:02:17Z",
    "title_canon_sha256": "048cadaf75b83a386bf3eb40ef07dc4a442d10286d4b86d8424ae6b036231164"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11156",
    "kind": "arxiv",
    "version": 1
  }
}