Pith Number

pith:AE2G6B2L

pith:2015:AE2G6B2LIYKJWFBF2LH7G5IM3T

not attested not anchored not stored refs pending

Improved spectral descriptions of planetary nebulae central stars

Roberto Gamen, Roberto Mendez, Walter Weidmann

arxiv:1505.04213 v1 · 2015-05-15 · 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{AE2G6B2LIYKJWFBF2LH7G5IM3T}

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	2026-05-18T01:37:13.134795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01346f074b46149b1425d2cff3750cdcc496d92a980c1d1e5def674e1c0d3d02

Aliases

arxiv: 1505.04213 · arxiv_version: 1505.04213v1 · doi: 10.48550/arxiv.1505.04213 · pith_short_12: AE2G6B2LIYKJ · pith_short_16: AE2G6B2LIYKJWFBF · pith_short_8: AE2G6B2L

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/AE2G6B2LIYKJWFBF2LH7G5IM3T \
  | 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: 01346f074b46149b1425d2cff3750cdcc496d92a980c1d1e5def674e1c0d3d02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50ffabed8eb39b45c239f0c9bc589cfce06d834766f23bf0c74d9993d7e340fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-15T22:38:00Z",
    "title_canon_sha256": "20a35b0b88497b0adff08247c51e777900dcc826bdddbfadb9d1bd53de25e2a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04213",
    "kind": "arxiv",
    "version": 1
  }
}