Pith Number

pith:IWA4CFCC

pith:2018:IWA4CFCCDO4E4S4ECKFK66AXQC

not attested not anchored not stored refs pending

Exceptionally fast ejecta seen in light echoes of Eta Carinae's Great Eruption

Armin Rest, A. Zenteno, David J. James, Federica B. Bianco, Giovanni Maria Strampelli, Jennifer E. Andrews, Jose L. Prieto, Nathan Smith, R. Chris Smith, Tom Matheson

arxiv:1808.00991 v1 · 2018-08-02 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IWA4CFCCDO4E4S4ECKFK66AXQC}

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	2026-05-18T00:08:14.290711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4581c114421bb84e4b84128aaf7817808c167dc5dd03391a30d9bbeff3fad3df

Aliases

arxiv: 1808.00991 · arxiv_version: 1808.00991v1 · doi: 10.48550/arxiv.1808.00991 · pith_short_12: IWA4CFCCDO4E · pith_short_16: IWA4CFCCDO4E4S4E · pith_short_8: IWA4CFCC

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/IWA4CFCCDO4E4S4ECKFK66AXQC \
  | 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: 4581c114421bb84e4b84128aaf7817808c167dc5dd03391a30d9bbeff3fad3df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9bfa42e22252b3957069378c401ff08e17d5cab9f327a805c8c2ddbdef60a49",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-02T19:05:32Z",
    "title_canon_sha256": "02c181f1e9f2ccc8c0dcc36d0593ee6fcfb0ce396da013184347b257bc19ca9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00991",
    "kind": "arxiv",
    "version": 1
  }
}