Pith Number

pith:A44X6MFT

pith:2012:A44X6MFTV7HHW3GTLW7KI4353N

not attested not anchored not stored refs pending

Planetary nebulae and their mimics: the MASH-MEN Project

David J. Frew, Ivan Bojicic, Quentin A. Parker, Rozenn Boissay

arxiv:1207.7237 v1 · 2012-07-31 · 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{A44X6MFTV7HHW3GTLW7KI4353N}

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	2026-05-18T01:56:00.700388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07397f30b3afce7b6cd35dbea4737ddb4f755b2d20d941b48354abec8a0f6884

Aliases

arxiv: 1207.7237 · arxiv_version: 1207.7237v1 · doi: 10.48550/arxiv.1207.7237 · pith_short_12: A44X6MFTV7HH · pith_short_16: A44X6MFTV7HHW3GT · pith_short_8: A44X6MFT

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/A44X6MFTV7HHW3GTLW7KI4353N \
  | 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: 07397f30b3afce7b6cd35dbea4737ddb4f755b2d20d941b48354abec8a0f6884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da67568a69f8cd272cfffd053ca9432bbea93d183e16475d4e39c55562a43520",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-31T13:34:23Z",
    "title_canon_sha256": "ccd036760330b1a6464846f695414258de05c2be6ce7efbaeabe6456fd845ae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7237",
    "kind": "arxiv",
    "version": 1
  }
}