Pith Number

pith:4OMLFCTQ

pith:2010:4OMLFCTQPLXNA4VVAY6UOH3ITR

not attested not anchored not stored refs pending

Parallel HOP: A Scalable Halo Finder for Massive Cosmological Data Sets

Alison L. Coil (1) ((1) Center for Astrophysics, Matthew J. Turk (1), Michael L. Norman (1), San Diego), Space Sciences, Stephen Skory (1), University of California

arxiv:1001.3411 v2 · 2010-01-19 · astro-ph.CO · 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{4OMLFCTQPLXNA4VVAY6UOH3ITR}

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	2026-05-18T02:09:42.208350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e398b28a707aeed072b5063d471f689c6f63fa650c6751fc5a117cd5018e0675

Aliases

arxiv: 1001.3411 · arxiv_version: 1001.3411v2 · doi: 10.48550/arxiv.1001.3411 · pith_short_12: 4OMLFCTQPLXN · pith_short_16: 4OMLFCTQPLXNA4VV · pith_short_8: 4OMLFCTQ

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/4OMLFCTQPLXNA4VVAY6UOH3ITR \
  | 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: e398b28a707aeed072b5063d471f689c6f63fa650c6751fc5a117cd5018e0675

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca2cb327f490dff6c825b4a1ab5e9abc33ba8147820cc46014137a8fbdfe6820",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-19T21:12:46Z",
    "title_canon_sha256": "610b780693d508354d9109f1d62a01aca5e254b808661f34ee9f55c64dded810"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3411",
    "kind": "arxiv",
    "version": 2
  }
}