Pith Number

pith:GI47S5FJ

pith:2019:GI47S5FJ2NEXQFDYFUUHXRNRPX

not attested not anchored not stored refs pending

The inner dust shell of Betelgeuse detected by polarimetric aperture-masking interferometry

A. Chiavassa, B. Norris, C. Pinte, G. Perrin, J. H. Girard, N.M. Kostogryz, P.G. Tuthill, P. Kervella, S. Lacour, S.T. Ridgway, S.V. Berdyugina, X. Haubois

arxiv:1907.08594 v1 · 2019-07-19 · 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{GI47S5FJ2NEXQFDYFUUHXRNRPX}

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	2026-07-04T23:55:47.329981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15

Aliases

arxiv: 1907.08594 · arxiv_version: 1907.08594v1 · doi: 10.48550/arxiv.1907.08594 · pith_short_12: GI47S5FJ2NEX · pith_short_16: GI47S5FJ2NEXQFDY · pith_short_8: GI47S5FJ

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/GI47S5FJ2NEXQFDYFUUHXRNRPX \
  | 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: 3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aa68f30caf0b79a931f12444e3c102bd12a4bd5084ab223e77c87fc0e950da3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-07-19T17:42:58Z",
    "title_canon_sha256": "77022dd216964341048ec2e2cf36fbfa43d84b3d6c80c86be2ad595daf7adbca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08594",
    "kind": "arxiv",
    "version": 1
  }
}