Pith Number

pith:2GZHCLTA

pith:2003:2GZHCLTAPFLHAXY4XITGUZNIXA

not attested not anchored not stored refs pending

Automatic Detection of Expanding HI Shells Using Artificial Neural Networks

Anik Daigle, Gilles Joncas, Marc-Antoine Miville-Deschenes, Marc Parizeau

arxiv:astro-ph/0304334 v1 · 2003-04-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GZHCLTAPFLHAXY4XITGUZNIXA}

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	2026-05-18T04:29:05.161742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b2712e607956705f1cba266a65a8b81ebe7e246fc9eb299adc1f62a245ed74

Aliases

arxiv: astro-ph/0304334 · arxiv_version: astro-ph/0304334v1 · doi: 10.48550/arxiv.astro-ph/0304334 · pith_short_12: 2GZHCLTAPFLH · pith_short_16: 2GZHCLTAPFLHAXY4 · pith_short_8: 2GZHCLTA

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/2GZHCLTAPFLHAXY4XITGUZNIXA \
  | 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: d1b2712e607956705f1cba266a65a8b81ebe7e246fc9eb299adc1f62a245ed74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf3dc820c4459a99e00bc5906978868f30d32548a4b9e1a3b0c4e1206401b2ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-17T21:09:26Z",
    "title_canon_sha256": "5de214d6e963c50efd85a171c88d0f7f9118a3a8b1c104b0853742d9abeae387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304334",
    "kind": "arxiv",
    "version": 1
  }
}