Pith Number

pith:3Q4IBR7Z

pith:2016:3Q4IBR7ZSIZACZ4GPGLAATVGKI

not attested not anchored not stored refs pending

Gaseous abundances in planetary nebulae: What have we learned in the past five years?

G. Delgado-Inglada

arxiv:1611.10246 v2 · 2016-11-30 · astro-ph.GA · 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{3Q4IBR7ZSIZACZ4GPGLAATVGKI}

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	2026-05-18T00:30:46.456956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc3880c7f992320167867996004ea652192bf613f9acf72ed15c49a0772fc089

Aliases

arxiv: 1611.10246 · arxiv_version: 1611.10246v2 · doi: 10.48550/arxiv.1611.10246 · pith_short_12: 3Q4IBR7ZSIZA · pith_short_16: 3Q4IBR7ZSIZACZ4G · pith_short_8: 3Q4IBR7Z

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/3Q4IBR7ZSIZACZ4GPGLAATVGKI \
  | 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: dc3880c7f992320167867996004ea652192bf613f9acf72ed15c49a0772fc089

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0957f64a91bf06a874f54e2080bc6bd625fabf8bf62a9623f2240f0e750d0a25",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-11-30T16:06:19Z",
    "title_canon_sha256": "8baa27c53d11279eeaafa7d2bff1c1cd71f0b7ebc3d9c7819bfe5b164eb0fce2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.10246",
    "kind": "arxiv",
    "version": 2
  }
}