Pith Number

pith:JMWV63P6

pith:2009:JMWV63P6P3UXXY6QUIL447BXE5

not attested not anchored not stored refs pending

Low-ionization pairs of knots in planetary nebulae: physical properties and excitation

3), A. Mampaso (2), Brazil), Brazil; (2) IAC, C. Quireza (4) ((1) UFRJ-OV, D.R. Goncalves (1), Rio de Janeiro, R.L.M. Corradi (2, Spain; (3) INGT, Spain; (4) ON-MCT, Sta. Cruz de La Palma, Tenerife

arxiv:0906.4134 v2 · 2009-06-22 · astro-ph.SR · 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{JMWV63P6P3UXXY6QUIL447BXE5}

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	2026-05-18T02:13:13.301432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b2d5f6dfe7ee97be3d0a217ce7c3727590615095caa5368238b5dd48cdee87b

Aliases

arxiv: 0906.4134 · arxiv_version: 0906.4134v2 · doi: 10.48550/arxiv.0906.4134 · pith_short_12: JMWV63P6P3UX · pith_short_16: JMWV63P6P3UXXY6Q · pith_short_8: JMWV63P6

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/JMWV63P6P3UXXY6QUIL447BXE5 \
  | 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: 4b2d5f6dfe7ee97be3d0a217ce7c3727590615095caa5368238b5dd48cdee87b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30145b790b29144d39083630cd2afa7472c4111f649bc1c10c182e4af5fb729f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-22T21:12:13Z",
    "title_canon_sha256": "686b875020eb6ffe5a825fe6f5eb65108d60d8adfad2a5b3c91dd26c860ab368"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4134",
    "kind": "arxiv",
    "version": 2
  }
}