Pith Number

pith:GPKTM4W5

pith:2012:GPKTM4W5W6O5JXV2MCBJYMHBOL

not attested not anchored not stored refs pending

A catalogue of integrated H-alpha fluxes for 1,258 Galactic planetary nebulae

David J. Frew, Ivan S. Bojicic, Q. A. Parker

arxiv:1211.2505 v1 · 2012-11-12 · 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{GPKTM4W5W6O5JXV2MCBJYMHBOL}

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	2026-05-18T01:53:16.905691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33d53672ddb79dd4deba60829c30e172c0c9024df0c39e2b1e1689775d082686

Aliases

arxiv: 1211.2505 · arxiv_version: 1211.2505v1 · doi: 10.48550/arxiv.1211.2505 · pith_short_12: GPKTM4W5W6O5 · pith_short_16: GPKTM4W5W6O5JXV2 · pith_short_8: GPKTM4W5

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/GPKTM4W5W6O5JXV2MCBJYMHBOL \
  | 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: 33d53672ddb79dd4deba60829c30e172c0c9024df0c39e2b1e1689775d082686

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80729b15af12e4e9550f6e86c748f4f89941886bc1a65e1bdd4528f92a747d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-12T03:29:00Z",
    "title_canon_sha256": "61826864a0268130bae606de873c4dc866b7947e39d4053d7752e7437821ae4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2505",
    "kind": "arxiv",
    "version": 1
  }
}