Pith Number

pith:JHVUJLOD

pith:2019:JHVUJLODNTQ235PIS2RGKWZLTL

not attested not anchored not stored refs pending

Mid-infrared evolution of eta Car from 1968 to 2018

A. Mehner, C. Agliozzo, D. Asmus, D.J. Hillier, G. Weigelt, M.J. Barlow, P.W. Morris, T.R. Gull, W.-J. de Wit

arxiv:1908.09154 v1 · 2019-08-24 · 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{JHVUJLODNTQ235PIS2RGKWZLTL}

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	2026-07-05T00:09:03.678273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49eb44adc36ce1adf5e896a2655b2b9ad200821f0052250a8ba14fd8139c3cbd

Aliases

arxiv: 1908.09154 · arxiv_version: 1908.09154v1 · doi: 10.48550/arxiv.1908.09154 · pith_short_12: JHVUJLODNTQ2 · pith_short_16: JHVUJLODNTQ235PI · pith_short_8: JHVUJLOD

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/JHVUJLODNTQ235PIS2RGKWZLTL \
  | 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: 49eb44adc36ce1adf5e896a2655b2b9ad200821f0052250a8ba14fd8139c3cbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eaf7dae77f6e7fb35749925e67f49da653bbf1e53521337228b85d5f4a8ee30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-24T15:38:04Z",
    "title_canon_sha256": "995ad5f287b2053d9bb6c6b8b3a70aeece5f9dfe00c7dc9f41028a2feffffb5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09154",
    "kind": "arxiv",
    "version": 1
  }
}