Pith Number

pith:AL4FFZVL

pith:2017:AL4FFZVLWYRQGIKMFAQZL5EJJI

not attested not anchored not stored refs pending

Abundances in Galactic Bulge planetary nebulae from optical, ultraviolet and infrared observations

Albert A. Zijlstra, Christina L. Smith, Harriet L. Dinerstein, Krzysztof M. Gesicki

arxiv:1707.06672 v1 · 2017-07-20 · 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{AL4FFZVLWYRQGIKMFAQZL5EJJI}

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	2026-05-18T00:37:33.319338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02f852e6abb62303214c282195f4894a2040ee5105e908d9acaa44b407590602

Aliases

arxiv: 1707.06672 · arxiv_version: 1707.06672v1 · doi: 10.48550/arxiv.1707.06672 · pith_short_12: AL4FFZVLWYRQ · pith_short_16: AL4FFZVLWYRQGIKM · pith_short_8: AL4FFZVL

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/AL4FFZVLWYRQGIKMFAQZL5EJJI \
  | 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: 02f852e6abb62303214c282195f4894a2040ee5105e908d9acaa44b407590602

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d77e273136aa8e54ba6dc407be05b90fb1ca804e3b363c9828af910494d3a51",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-07-20T18:38:37Z",
    "title_canon_sha256": "552a5cfc1cc964f83a6da10fd74c3c0b8e352b0d5922cae33ac8d60110dbac1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06672",
    "kind": "arxiv",
    "version": 1
  }
}