Pith Number

pith:E632G6HQ

pith:2018:E632G6HQZCGLFFHDFDL36DLKT6

not attested not anchored not stored refs pending

Extended Structures of Planetary Nebulae Detected in H$_{2}$ Emission

Chih-Hao Hsia, Gerardo Ramos-Larios, Martin A. Guerrero, Sun Kwok, Wayne Chau, Xuan Fang, Yong Zhang

arxiv:1804.08840 v1 · 2018-04-24 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E632G6HQZCGLFFHDFDL36DLKT6}

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	2026-05-18T00:13:26.055790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27b7a378f0c88cb294e328d7bf0d6a9f9116b024be96f7f861328bfb17100c2f

Aliases

arxiv: 1804.08840 · arxiv_version: 1804.08840v1 · doi: 10.48550/arxiv.1804.08840 · pith_short_12: E632G6HQZCGL · pith_short_16: E632G6HQZCGLFFHD · pith_short_8: E632G6HQ

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/E632G6HQZCGLFFHDFDL36DLKT6 \
  | 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: 27b7a378f0c88cb294e328d7bf0d6a9f9116b024be96f7f861328bfb17100c2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9c068d00653df83e1e19b04d5b1e51fcec572ebc8e5e75b29e10c2b73327dd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-24T05:15:51Z",
    "title_canon_sha256": "36c332f96c274e20a925d5a81f00120bbd62880a1e94e4d64ca7796688e67054"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08840",
    "kind": "arxiv",
    "version": 1
  }
}