Pith Number

pith:LZYHA4UG

pith:2013:LZYHA4UGTOS7X6RN57RT4Z6ZIF

not attested not anchored not stored refs pending

On the nature of the WO3 star DR1 in IC 1613

A. de Koter, F. Tramper, G. Gr\"afener, H. Sana, J.S. Vink, L.E. Ellerbroek, L. Kaper, M. Garcia, N. Langer, O.E. Hartoog, S.E. de Mink

arxiv:1312.1555 v1 · 2013-12-05 · 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{LZYHA4UGTOS7X6RN57RT4Z6ZIF}

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	2026-05-18T03:05:26.925702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e707072869ba5fbfa2defe33e67d941507cbf9961442991dc830250538ecca8

Aliases

arxiv: 1312.1555 · arxiv_version: 1312.1555v1 · doi: 10.48550/arxiv.1312.1555 · pith_short_12: LZYHA4UGTOS7 · pith_short_16: LZYHA4UGTOS7X6RN · pith_short_8: LZYHA4UG

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/LZYHA4UGTOS7X6RN57RT4Z6ZIF \
  | 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: 5e707072869ba5fbfa2defe33e67d941507cbf9961442991dc830250538ecca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f325ce45ee1e2743a5a2b24f12e5bf4c073711fc347b4546ad50ba44a4769f12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-05T14:19:02Z",
    "title_canon_sha256": "e4f2acef82afcb592b82a0ddde715d85714baa33f0d9100c34c5568367851d4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1555",
    "kind": "arxiv",
    "version": 1
  }
}