Pith Number

pith:7HCV76WJ

pith:2014:7HCV76WJW5KJHPUJ65FMKPJDUQ

not attested not anchored not stored refs pending

The Smith Cloud and its dark matter halo: Survival of a Galactic disc passage

Felix J. Lockman, Joss Bland-Hawthorn, Matthew Nichols, Nestor Mirabal, Oscar Agertz

arxiv:1404.3209 v1 · 2014-04-11 · astro-ph.GA · 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{7HCV76WJW5KJHPUJ65FMKPJDUQ}

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	2026-05-18T01:43:35.275253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c55ffac9b75493be89f74ac53d23a41a059fa0f19afd9b38f62ce516c64f64

Aliases

arxiv: 1404.3209 · arxiv_version: 1404.3209v1 · doi: 10.48550/arxiv.1404.3209 · pith_short_12: 7HCV76WJW5KJ · pith_short_16: 7HCV76WJW5KJHPUJ · pith_short_8: 7HCV76WJ

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/7HCV76WJW5KJHPUJ65FMKPJDUQ \
  | 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: f9c55ffac9b75493be89f74ac53d23a41a059fa0f19afd9b38f62ce516c64f64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db0aba15ec484841a00751e9ab1de4251c315d70900e4b2d26e2fa644ee4f880",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-04-11T20:00:06Z",
    "title_canon_sha256": "65e459cf17ad1e260fbb1e9c063044f71d3a0dba2fbfbd19e63746e4c76010bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3209",
    "kind": "arxiv",
    "version": 1
  }
}