Pith Number

pith:Z4GFBIOC

pith:2018:Z4GFBIOC3R6XQT3FEWDCOX6NSW

not attested not anchored not stored refs pending

A Study of H$\alpha$ Line Profile Variations in $\beta$ Lyr

Derck Massa, Gary Henson, Macon Magno, Richard Ignace, Sharon Gray

arxiv:1807.04221 v1 · 2018-07-11 · 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{Z4GFBIOC3R6XQT3FEWDCOX6NSW}

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	2026-05-18T00:06:59.134953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0c50a1c2dc7d784f652586275fcd959f4c6d0a077e87338de8173bebeda46c

Aliases

arxiv: 1807.04221 · arxiv_version: 1807.04221v1 · doi: 10.48550/arxiv.1807.04221 · pith_short_12: Z4GFBIOC3R6X · pith_short_16: Z4GFBIOC3R6XQT3F · pith_short_8: Z4GFBIOC

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/Z4GFBIOC3R6XQT3FEWDCOX6NSW \
  | 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: cf0c50a1c2dc7d784f652586275fcd959f4c6d0a077e87338de8173bebeda46c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbb8256c617e3525a8767703139a37ea514c9fc489071d19bba072101a5b4990",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-11T16:04:18Z",
    "title_canon_sha256": "02414e5b76dd2a9c0bb386a996744e930e20e70c8a79ac393d437ed193e2da27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04221",
    "kind": "arxiv",
    "version": 1
  }
}