Pith Number

pith:KUMVSICZ

pith:2013:KUMVSICZ66HBQPQ46I35J3YL37

not attested not anchored not stored refs pending

Two rings but no fellowship: LoTr 1 and its relation to planetary nebulae possessing barium central stars

A.A. Tyndall, B. Miszalski, D. Jones, D. Pollacco, F. Faedi, H.M.J. Boffin, J.A. L\'opez, M. Lloyd, M. Santander-Garc\'ia, S. Martell

arxiv:1309.4307 v1 · 2013-09-17 · 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{KUMVSICZ66HBQPQ46I35J3YL37}

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	2026-05-18T01:47:36.596157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5519592059f78e183e1cf237d4ef0bdfeef6a954d6b5d9131a912d28eedfb628

Aliases

arxiv: 1309.4307 · arxiv_version: 1309.4307v1 · doi: 10.48550/arxiv.1309.4307 · pith_short_12: KUMVSICZ66HB · pith_short_16: KUMVSICZ66HBQPQ4 · pith_short_8: KUMVSICZ

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/KUMVSICZ66HBQPQ46I35J3YL37 \
  | 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: 5519592059f78e183e1cf237d4ef0bdfeef6a954d6b5d9131a912d28eedfb628

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff3b79600a422fd101c32cfa3ab8e5e46b3440890389d1b6e8d3b347c80c4b4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-17T13:48:36Z",
    "title_canon_sha256": "e1006bd5d1b519282ecef0e8778c242f71798fa6934dba437e6c7226df92c1d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4307",
    "kind": "arxiv",
    "version": 1
  }
}