Pith Number

pith:TMDUBZWF

pith:2019:TMDUBZWFOUUJQ7BOUY63XGVT7Q

not attested not anchored not stored refs pending

Dust evolution in the circumstellar disc of the unclassified B[e] star HD 50138

\'A. K\'osp\'al, J. Varga, K. Gab\'anyi, L. Chen, P. \'Abrah\'am, T. Gerj\'ak

arxiv:1902.09421 v1 · 2019-02-25 · 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{TMDUBZWFOUUJQ7BOUY63XGVT7Q}

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	2026-05-17T23:52:45.812947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b0740e6c57528987c2ea63dbb9ab3fc170c56dcfe444a0626075e28f95813aa

Aliases

arxiv: 1902.09421 · arxiv_version: 1902.09421v1 · doi: 10.48550/arxiv.1902.09421 · pith_short_12: TMDUBZWFOUUJ · pith_short_16: TMDUBZWFOUUJQ7BO · pith_short_8: TMDUBZWF

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/TMDUBZWFOUUJQ7BOUY63XGVT7Q \
  | 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: 9b0740e6c57528987c2ea63dbb9ab3fc170c56dcfe444a0626075e28f95813aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d0d33ffedcb60e50909357b2c9b606138da45fcbd29e7f6150a9d3b6984eaf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-25T16:38:08Z",
    "title_canon_sha256": "3f72188b25bc1cfac4dc2994e54cf498326d3ebcbb4102c515c10a4ae98df919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09421",
    "kind": "arxiv",
    "version": 1
  }
}