Pith Number

pith:XXKQEYQ2

pith:2017:XXKQEYQ2AO6H2BLAR5AVAKFLKX

not attested not anchored not stored refs pending

Nuclear Spirals in the inner Milky Way

John Magorrian, Matthew Ridley, Mattia C. Sormani, Ralf S. Klessen, Robin G. Tre{\ss}

arxiv:1704.03665 v2 · 2017-04-12 · 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{XXKQEYQ2AO6H2BLAR5AVAKFLKX}

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	2026-05-18T00:42:34.750089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdd502621a03bc7d05608f415028ab55c19bc87a49698db13d7c3f49e5518270

Aliases

arxiv: 1704.03665 · arxiv_version: 1704.03665v2 · doi: 10.48550/arxiv.1704.03665 · pith_short_12: XXKQEYQ2AO6H · pith_short_16: XXKQEYQ2AO6H2BLA · pith_short_8: XXKQEYQ2

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/XXKQEYQ2AO6H2BLAR5AVAKFLKX \
  | 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: bdd502621a03bc7d05608f415028ab55c19bc87a49698db13d7c3f49e5518270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a68a11a5bdb765b9d1ec4dfd5b908e2cd6f6fdb9a296f7c552dcbf228b0cca5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-04-12T09:21:38Z",
    "title_canon_sha256": "6d5266acbae701abcf8f424f14f48a4740c1f2c721d8cd65d0c2433189893e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03665",
    "kind": "arxiv",
    "version": 2
  }
}