Pith Number

pith:R74OR33N

pith:2019:R74OR33NBAWUJEDVWZUMMFDOA4

not attested not anchored not stored refs pending

The Galactic spiral structure as revealed by O- and early B-type stars

Chen Bingqiu, Hou Ligang, Huang Yang, Li Guangxing, Liu Xiaowei, Tian Hao, Tian Zhijia, Wang Chun, Wang Haifeng, Yuan Haibo

arxiv:1905.05542 v1 · 2019-05-14 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R74OR33NBAWUJEDVWZUMMFDOA4}

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	2026-05-17T23:43:49.356407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ff8e8ef6d082d449075b668c6146e071360ef039dcf26eaa717496356bb5bf8

Aliases

arxiv: 1905.05542 · arxiv_version: 1905.05542v1 · doi: 10.48550/arxiv.1905.05542 · pith_short_12: R74OR33NBAWU · pith_short_16: R74OR33NBAWUJEDV · pith_short_8: R74OR33N

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/R74OR33NBAWUJEDVWZUMMFDOA4 \
  | 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: 8ff8e8ef6d082d449075b668c6146e071360ef039dcf26eaa717496356bb5bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29ae8b8667a37bdc2faeba92b4e9c9a0f3d12707851105fac263a49bc9c84bf2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-14T12:13:39Z",
    "title_canon_sha256": "de030d47b7fb4e77e4644e0f73d13e9303aa13678b0df55a6a113ba237f0851b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05542",
    "kind": "arxiv",
    "version": 1
  }
}