Pith Number

pith:IMNLEUPU

pith:2006:IMNLEUPUJDSOKLDHZW4IKIJGCP

not attested not anchored not stored refs pending

Planetary Nebula Abundances and Morphology: Probing the Chemical Evolution of the Milky Way

A. Manchado, A. M. Guerrero, E. Villaver, K. Cunha, L. Stanghellini

arxiv:astro-ph/0607480 v1 · 2006-07-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IMNLEUPUJDSOKLDHZW4IKIJGCP}

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	2026-07-04T15:19:08.985989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

431ab251f448e4e52c67cdb885212613e29d64a5ad408c7dcb0ab1f519ccb19f

Aliases

arxiv: astro-ph/0607480 · arxiv_version: astro-ph/0607480v1 · doi: 10.48550/arxiv.astro-ph/0607480 · pith_short_12: IMNLEUPUJDSO · pith_short_16: IMNLEUPUJDSOKLDH · pith_short_8: IMNLEUPU

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/IMNLEUPUJDSOKLDHZW4IKIJGCP \
  | 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: 431ab251f448e4e52c67cdb885212613e29d64a5ad408c7dcb0ab1f519ccb19f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "429c887607abd18f2d07cee20c76a728859ff7fa19757dd5d57215f74330cdcd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-20T20:00:23Z",
    "title_canon_sha256": "723804e47773a51d2e61e92c8c483dcf44d15166a1416be9e6103f2877da2fb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607480",
    "kind": "arxiv",
    "version": 1
  }
}