Pith Number

pith:AL3PQ3YE

pith:2000:AL3PQ3YEBUPQRXOBXTFQTV4W4D

not attested not anchored not stored refs pending

Chemical Abundances and Ionizing Clusters of HII Regions in the LINER Galaxy NGC 4258

(2) INAOE. Puebla. Mexico, (3)Grantecan. Tenerife. Spain), Angeles I. Diaz (1), Elena Terlevich (2), Marcelo Castellanos (1), Maria L. Garcia-Vargas (3) ((1) Depto. Fisica Teorica. UAM. Madrid. Spain

arxiv:astro-ph/0006193 v1 · 2000-06-14 · 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{AL3PQ3YEBUPQRXOBXTFQTV4W4D}

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	2026-05-18T01:40:47.663952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02f6f86f040d1f08ddc1bccb09d796e0ec7481ac71eabb02aee91a3c3f851f20

Aliases

arxiv: astro-ph/0006193 · arxiv_version: astro-ph/0006193v1 · doi: 10.48550/arxiv.astro-ph/0006193 · pith_short_12: AL3PQ3YEBUPQ · pith_short_16: AL3PQ3YEBUPQRXOB · pith_short_8: AL3PQ3YE

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/AL3PQ3YEBUPQRXOBXTFQTV4W4D \
  | 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: 02f6f86f040d1f08ddc1bccb09d796e0ec7481ac71eabb02aee91a3c3f851f20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d33252a2eddbaec51dd7cc553dc4798ead10eec3418136b9811b01fa4b47d501",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-14T11:13:47Z",
    "title_canon_sha256": "de8dec34416163f3c53392b91668419faecbb338678f5058a5fdfe0aafba78e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006193",
    "kind": "arxiv",
    "version": 1
  }
}