Pith Number

pith:MOX77FZF

pith:2018:MOX77FZFR67Z3VYH2Z36ACRG4G

not attested not anchored not stored refs pending

A new C-D-like diagram for SPB stars: The variations of period spacing as a signature of evolutionary status

Tao Wu, Yan Li, Zhen-min Deng

arxiv:1809.02620 v1 · 2018-09-07 · 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{MOX77FZFR67Z3VYH2Z36ACRG4G}

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	2026-05-18T00:01:28.401794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63afff97258fbf9dd707d677e00a26e1ac833e4489ce3da61044b342f950b8fc

Aliases

arxiv: 1809.02620 · arxiv_version: 1809.02620v1 · doi: 10.48550/arxiv.1809.02620 · pith_short_12: MOX77FZFR67Z · pith_short_16: MOX77FZFR67Z3VYH · pith_short_8: MOX77FZF

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/MOX77FZFR67Z3VYH2Z36ACRG4G \
  | 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: 63afff97258fbf9dd707d677e00a26e1ac833e4489ce3da61044b342f950b8fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "953b75574457d3f9c4c92b97fd2ff4ef7d39802c95b28591f3f9a17e4794067a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-07T18:01:15Z",
    "title_canon_sha256": "fe13c6a5591cc53e06d5b35b620a796f2a4c53ac343c99894d301e48f6a27d7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02620",
    "kind": "arxiv",
    "version": 1
  }
}