Pith Number

pith:G5ECKFJ5

pith:2009:G5ECKFJ5LZ7BNDKC5MZFJWCYV3

not attested not anchored not stored refs pending

VLT Spectropolarimetry of the optical transient in NGC300. Evidence for asymmetry in the circumstellar dust

A. Harutyunyan, E. Cappellaro, F. Patat, J.R. Maund, M.-T. Botticella, M. Turatto, S. Benetti

arxiv:0908.0942 v2 · 2009-08-07 · astro-ph.SR · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G5ECKFJ5LZ7BNDKC5MZFJWCYV3}

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	2026-05-18T02:12:36.918196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

374825153d5e7e168d42eb3254d858aedf019d7e885afe62c8349ec3564ab4d9

Aliases

arxiv: 0908.0942 · arxiv_version: 0908.0942v2 · doi: 10.48550/arxiv.0908.0942 · pith_short_12: G5ECKFJ5LZ7B · pith_short_16: G5ECKFJ5LZ7BNDKC · pith_short_8: G5ECKFJ5

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/G5ECKFJ5LZ7BNDKC5MZFJWCYV3 \
  | 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: 374825153d5e7e168d42eb3254d858aedf019d7e885afe62c8349ec3564ab4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74bb004607628dbdfaff9d48ddd152c326be8e424212aa4107af43b81b20d8f4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-07T15:42:04Z",
    "title_canon_sha256": "d98b3f8a8e97e18d2771ef222ca1677cdf983b7f57d22fa2647a3809dc343e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0942",
    "kind": "arxiv",
    "version": 2
  }
}