Pith Number

pith:VE57K7VW

pith:2018:VE57K7VWP7BQFBD7GHBNQDYNXB

not attested not anchored not stored refs pending

A Short Research Note on Calculating Exact Distribution Functions and Random Sampling for the 3D NFW Profile

A. S. G. Robotham, Cullan Howlett

arxiv:1805.09550 v2 · 2018-05-24 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VE57K7VWP7BQFBD7GHBNQDYNXB}

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	2026-05-18T00:14:59.063350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a93bf57eb67fc302847f31c2d80f0db866dc681873896ab192fac3330dc9759a

Aliases

arxiv: 1805.09550 · arxiv_version: 1805.09550v2 · doi: 10.48550/arxiv.1805.09550 · pith_short_12: VE57K7VWP7BQ · pith_short_16: VE57K7VWP7BQFBD7 · pith_short_8: VE57K7VW

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/VE57K7VWP7BQFBD7GHBNQDYNXB \
  | 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: a93bf57eb67fc302847f31c2d80f0db866dc681873896ab192fac3330dc9759a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707897b5fa0640dc7b052e8c774acc8b11aa838f634dfabb7e329cf0b7164292",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-05-24T08:39:06Z",
    "title_canon_sha256": "66b4b536bdb50bc3e36761ab23085fedd31b2716694c694fb8b9f17ec0e1fd94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09550",
    "kind": "arxiv",
    "version": 2
  }
}