Pith Number

pith:Y72XVK3Y

pith:2018:Y72XVK3Y2OZHGX3DR4JQYRGELV

not attested not anchored not stored refs pending

PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics

Emily Kendall, Faber Edwards, Richard Easther, Shaun Hotchkiss

arxiv:1807.04037 v3 · 2018-07-11 · 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{Y72XVK3Y2OZHGX3DR4JQYRGELV}

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.

Cited by

1 paper in Pith

Stone Skipping Black Holes in Ultralight Dark Matter Solitons

Receipt and verification

First computed	2026-05-18T00:02:59.620592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f57aab78d3b2735f638f130c44c45d539216f85acf689550dd18348c2d9f9b

Aliases

arxiv: 1807.04037 · arxiv_version: 1807.04037v3 · doi: 10.48550/arxiv.1807.04037 · pith_short_12: Y72XVK3Y2OZH · pith_short_16: Y72XVK3Y2OZHGX3D · pith_short_8: Y72XVK3Y

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/Y72XVK3Y2OZHGX3DR4JQYRGELV \
  | 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: c7f57aab78d3b2735f638f130c44c45d539216f85acf689550dd18348c2d9f9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a79bd6a862f83aed44536d05e981a0398fc35831d40551fc6d4a2cfc533ecb14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-07-11T09:38:23Z",
    "title_canon_sha256": "206503df3c898c13531f66c4b6637ff4eac9da74fb4119c3efb58bf5b8c44e39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04037",
    "kind": "arxiv",
    "version": 3
  }
}