Pith Number

pith:WDB4WW35

pith:2015:WDB4WW35UPON2Y3LJUKEDIQFOP

not attested not anchored not stored refs pending

The Structure of the Milky Way's Bar Outside the Bulge

Christopher Wegg, Matthieu Portail, Ortwin Gerhard

arxiv:1504.01401 v1 · 2015-04-06 · 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{WDB4WW35UPON2Y3LJUKEDIQFOP}

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	2026-05-18T01:46:21.358768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0c3cb5b7da3dcdd636b4d1441a20573e638c97567fb6fc10de19fd3bedd7238

Aliases

arxiv: 1504.01401 · arxiv_version: 1504.01401v1 · doi: 10.48550/arxiv.1504.01401 · pith_short_12: WDB4WW35UPON · pith_short_16: WDB4WW35UPON2Y3L · pith_short_8: WDB4WW35

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/WDB4WW35UPON2Y3LJUKEDIQFOP \
  | 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: b0c3cb5b7da3dcdd636b4d1441a20573e638c97567fb6fc10de19fd3bedd7238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec431124adda5f793fce3cc2ac521f2733c22c265da696a135a2c330f72a3541",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-06T20:04:11Z",
    "title_canon_sha256": "68e378594832b7329991b5fbcf20fe532a8c276b435b640a6aac8f620d654c7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01401",
    "kind": "arxiv",
    "version": 1
  }
}