Pith Number

pith:CNPEWBH2

pith:2014:CNPEWBH2VGOLEHKU7QEQSV4MOX

not attested not anchored not stored refs pending

Discovery of new low-excitation planetary nebulae

Chih-Hao Hsia (Department of Physics, University of Hong Kong), Yong Zhang (Department of Physics

arxiv:1402.2369 v1 · 2014-02-11 · 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{CNPEWBH2VGOLEHKU7QEQSV4MOX}

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	2026-05-18T01:44:45.558151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

135e4b04faa99cb21d54fc0909578c75dcb815b3b33b49cebddd75ac2c0e7868

Aliases

arxiv: 1402.2369 · arxiv_version: 1402.2369v1 · doi: 10.48550/arxiv.1402.2369 · pith_short_12: CNPEWBH2VGOL · pith_short_16: CNPEWBH2VGOLEHKU · pith_short_8: CNPEWBH2

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/CNPEWBH2VGOLEHKU7QEQSV4MOX \
  | 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: 135e4b04faa99cb21d54fc0909578c75dcb815b3b33b49cebddd75ac2c0e7868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca332994b6e0f02883185efbe4e1095f35b8b06b8d7adf79efd89ee38955dc95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-02-11T04:34:39Z",
    "title_canon_sha256": "ac58ce128e86db6f3e7fa31f2f090e971ec72eff33e2285a8f419d669a3c8aa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2369",
    "kind": "arxiv",
    "version": 1
  }
}