Pith Number

pith:R7FN7MG2

pith:2016:R7FN7MG22DND6XU6PUTRQBA62P

not attested not anchored not stored refs pending

Compact Galactic Planetary Nebulae: A HST/WFC3 Morphological Catalog, and a Study of their Role in the Galaxy

Eva Villaver, Letizia Stanghellini, Richard A. Shaw

arxiv:1606.06446 v1 · 2016-06-21 · 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{R7FN7MG22DND6XU6PUTRQBA62P}

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	2026-05-18T01:02:38.779423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fcadfb0dad0da3f5e9e7d2718041ed3d1a4c74688b7fc5ab5e823df4b74c2cf

Aliases

arxiv: 1606.06446 · arxiv_version: 1606.06446v1 · doi: 10.48550/arxiv.1606.06446 · pith_short_12: R7FN7MG22DND · pith_short_16: R7FN7MG22DND6XU6 · pith_short_8: R7FN7MG2

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/R7FN7MG22DND6XU6PUTRQBA62P \
  | 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: 8fcadfb0dad0da3f5e9e7d2718041ed3d1a4c74688b7fc5ab5e823df4b74c2cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9420cefaa2cc94ac91eaeacec9883eb7baa599c64c9b2a6908a06784bed622fd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-06-21T07:13:54Z",
    "title_canon_sha256": "32753e03ffb311434270b8b72d7a37577a649d824609b4733180f6cc5b4fdde7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.06446",
    "kind": "arxiv",
    "version": 1
  }
}