Pith Number

pith:XTIVUWK3

pith:2022:XTIVUWK3WGZYAUC37PFC3SOY42

not attested not anchored not stored refs pending

The survey of planetary nebulae in Andromeda (M 31) V. Chemical enrichment of the thin and thicker discs of Andromeda. Oxygen to argon abundance ratios for planetary nebulae and H II regions

Alan McConnachie, Chiaki Kobayashi, Johanna Hartke, Kenneth C. Freeman, Magda Arnaboldi, Nelson Caldwell, Ortwin Gerhard, Puragra Guhathakurta, Souradeep Bhattacharya

arxiv:2208.02328 v1 · 2022-08-03 · 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{XTIVUWK3WGZYAUC37PFC3SOY42}

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	2026-07-05T05:07:50.423239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcd15a595bb1b380505bfbca2dc9d8e69444144e42e453517d08edf43ae236f2

Aliases

arxiv: 2208.02328 · arxiv_version: 2208.02328v1 · doi: 10.48550/arxiv.2208.02328 · pith_short_12: XTIVUWK3WGZY · pith_short_16: XTIVUWK3WGZYAUC3 · pith_short_8: XTIVUWK3

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/XTIVUWK3WGZYAUC37PFC3SOY42 \
  | 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: bcd15a595bb1b380505bfbca2dc9d8e69444144e42e453517d08edf43ae236f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b7c3a43e5ce35ca8121941b9b1b3bcb60da41c0a78cf44eb6a5f65b27de4ba0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-08-03T20:00:17Z",
    "title_canon_sha256": "24b949611f83f24b47aed5f755608957e9407a905f5a1b4f8ccd4e1c9f56c1b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.02328",
    "kind": "arxiv",
    "version": 1
  }
}