Pith Number

pith:FPTNGUG5

pith:2017:FPTNGUG57XM5MRTOE7DZEXBNYF

not attested not anchored not stored refs pending

The Smith Cloud: surviving a high speed transit of the Galactic disc

Joss Bland-Hawthorn, Thor Tepper-Garcia

arxiv:1710.04666 v1 · 2017-10-12 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPTNGUG57XM5MRTOE7DZEXBNYF}

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	2026-05-18T00:27:42.715973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be6d350ddfdd9d6466e27c7925c2dc16b369349bde6243d3c60b62766f63baa

Aliases

arxiv: 1710.04666 · arxiv_version: 1710.04666v1 · doi: 10.48550/arxiv.1710.04666 · pith_short_12: FPTNGUG57XM5 · pith_short_16: FPTNGUG57XM5MRTO · pith_short_8: FPTNGUG5

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/FPTNGUG57XM5MRTOE7DZEXBNYF \
  | 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: 2be6d350ddfdd9d6466e27c7925c2dc16b369349bde6243d3c60b62766f63baa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0714057d37bd0018fc898caf751aac5fea522c725b3113491a17084b1ea0f56b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-10-12T18:00:03Z",
    "title_canon_sha256": "6bec71f9f65a509c865dee29cb69106aca5a02caed610c1717f1b0080c7958bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04666",
    "kind": "arxiv",
    "version": 1
  }
}