Pith Number

pith:HNIWT5AR

pith:2018:HNIWT5AR23AESHURDG6PPKXAAQ

not attested not anchored not stored refs pending

Polarization due to rotational distortion in the bright star Regulus

Daniel V. Cotton, Ian D. Howarth, Jeremy Bailey, J. H. Hough, Kimberly Bott, Lucyna Kedziora-Chudczer, P. W. Lucas

arxiv:1804.06576 v1 · 2018-04-18 · 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{HNIWT5AR23AESHURDG6PPKXAAQ}

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	2026-05-18T00:18:06.283119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b5169f411d6c0491e9119bcf7aae0041b716fb2d46f356a26043d9bf20881d4

Aliases

arxiv: 1804.06576 · arxiv_version: 1804.06576v1 · doi: 10.48550/arxiv.1804.06576 · pith_short_12: HNIWT5AR23AE · pith_short_16: HNIWT5AR23AESHUR · pith_short_8: HNIWT5AR

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/HNIWT5AR23AESHURDG6PPKXAAQ \
  | 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: 3b5169f411d6c0491e9119bcf7aae0041b716fb2d46f356a26043d9bf20881d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50ccfd2f52e4c5e264aa3ca7f9fa8586e866da52ebeab4c092079dd7410a9deb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-18T07:08:46Z",
    "title_canon_sha256": "f832f8f4cbd7c2227aa3ce8ef5056201d1f24e2f9a66fffcc6fbcc6680f612e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06576",
    "kind": "arxiv",
    "version": 1
  }
}