Pith Number

pith:Z7RB5XMM

pith:2018:Z7RB5XMMHOZ2WLUK6IPA4ZTS62

not attested not anchored not stored refs pending

The Planetary Nebula Luminosity Function (PNLF): Contamination from Supernova Remnants

Brian D. Davis, George H. Jacoby, John J. Feldmeier, Robin Ciardullo

arxiv:1802.07185 v1 · 2018-02-17 · 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{Z7RB5XMMHOZ2WLUK6IPA4ZTS62}

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	2026-05-18T00:22:36.859979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe21edd8c3bb3ab2e8af21e0e6672f68588c675b8f8f1aa5d9440e4e5f71432

Aliases

arxiv: 1802.07185 · arxiv_version: 1802.07185v1 · doi: 10.48550/arxiv.1802.07185 · pith_short_12: Z7RB5XMMHOZ2 · pith_short_16: Z7RB5XMMHOZ2WLUK · pith_short_8: Z7RB5XMM

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/Z7RB5XMMHOZ2WLUK6IPA4ZTS62 \
  | 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: cfe21edd8c3bb3ab2e8af21e0e6672f68588c675b8f8f1aa5d9440e4e5f71432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70e70926e872dd4dfce97b3ac57c52a0b745744c0e617056669c9a918a752ab7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-17T13:58:37Z",
    "title_canon_sha256": "754e26e15cf0654dfec786a49695340d9b00d59978628af390af338093b1a8a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07185",
    "kind": "arxiv",
    "version": 1
  }
}