Pith Number

pith:PLOR3GD6

pith:2006:PLOR3GD6C53JOKPQOWJCBIEYLT

not attested not anchored not stored refs pending

3D-Spectroscopy of extragalactic planetary nebulae as diagnostic probes for galaxy evolution

Ana Monreal-Ibero, Andreas Kelz, Christer Sandin, Detlef Schoenberner, Martin M. Roth, Matthias Steffen (Astrophysical Institute Potsdam)

arxiv:astro-ph/0607498 v1 · 2006-07-21 · 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{PLOR3GD6C53JOKPQOWJCBIEYLT}

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	2026-05-18T01:40:30.015236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7add1d987e17769729f0759220a0985cf566408c838a03fc636be2026936a55a

Aliases

arxiv: astro-ph/0607498 · arxiv_version: astro-ph/0607498v1 · doi: 10.48550/arxiv.astro-ph/0607498 · pith_short_12: PLOR3GD6C53J · pith_short_16: PLOR3GD6C53JOKPQ · pith_short_8: PLOR3GD6

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/PLOR3GD6C53JOKPQOWJCBIEYLT \
  | 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: 7add1d987e17769729f0759220a0985cf566408c838a03fc636be2026936a55a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "441abe1cb9f3b09c2bb34f25f7bcec67c5519b213d85c07da33931080c0cda86",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-21T10:40:05Z",
    "title_canon_sha256": "78acc487a778d34b09f635389d75af1e493466746c298c14f30fc041a8a1d72e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607498",
    "kind": "arxiv",
    "version": 1
  }
}