Pith Number

pith:BDLZMSXC

pith:2012:BDLZMSXCXGVAESPKZDUXYVKK66

not attested not anchored not stored refs pending

A catalog of planetary nebula candidates in the Sculptor spiral galaxy NGC 300

Jonnathan Reyes-Perez, Liliana Hernandez-Martinez, Miguel Perez-Guillen, Miriam Pena

arxiv:1208.5541 v1 · 2012-08-28 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDLZMSXCXGVAESPKZDUXYVKK66}

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	2026-05-18T01:54:51.036398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08d7964ae2b9aa0249eac8e97c554af795e1f869c70803047f03ff054f93bdcb

Aliases

arxiv: 1208.5541 · arxiv_version: 1208.5541v1 · doi: 10.48550/arxiv.1208.5541 · pith_short_12: BDLZMSXCXGVA · pith_short_16: BDLZMSXCXGVAESPK · pith_short_8: BDLZMSXC

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/BDLZMSXCXGVAESPKZDUXYVKK66 \
  | 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: 08d7964ae2b9aa0249eac8e97c554af795e1f869c70803047f03ff054f93bdcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "846089d2d4df81eb0f565b9d83e0273bbce80d2916f5510eb333e4aeab7d0fb3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-08-28T02:39:03Z",
    "title_canon_sha256": "62d9a2595fbc09bdd9473e7085a9b7e23a266efc28c91ab270db7d09382ae9e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5541",
    "kind": "arxiv",
    "version": 1
  }
}