Pith Number

pith:C2YBKAHI

pith:2009:C2YBKAHIGS62CWQIMVFQT22EFF

not attested not anchored not stored refs pending

High-speed knots in the hourglass shaped planetary nebula Hubble 12

(2) Jodrell Bank Centre for Astrophysics, (3) Instituto de Astronom\'ia, (4) Department of Pure, Applied Physics, A. P. Rushton (2), CEA/DSM/DAPNIA/SAp, D. L. Mitchell (2), D. Pollacco (4) ((1) Service d'Astrophysique, France, J. A. L\'opez (3), J. Meaburn (2), M\'exico, M. Lloyd (2), N. M. H. Vaytet (1), Queen's University Belfast, The University of Manchester, T. J. O'Brien (2), UK, UK), Universidad Nacional Autnoma de M\'exico

arxiv:0905.4625 v1 · 2009-05-28 · 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{C2YBKAHIGS62CWQIMVFQT22EFF}

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	2026-05-18T02:13:31.211899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16b01500e834bda15a08654b09eb44296e09e57baafd1ec012b50f519e17cf38

Aliases

arxiv: 0905.4625 · arxiv_version: 0905.4625v1 · doi: 10.48550/arxiv.0905.4625 · pith_short_12: C2YBKAHIGS62 · pith_short_16: C2YBKAHIGS62CWQI · pith_short_8: C2YBKAHI

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/C2YBKAHIGS62CWQIMVFQT22EFF \
  | 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: 16b01500e834bda15a08654b09eb44296e09e57baafd1ec012b50f519e17cf38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "211e35c6808d08e537b172e6e3f4a49a62eb26df543f9003eaac7ef6fcc2d27f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-28T12:02:29Z",
    "title_canon_sha256": "f74cacdfd2cde574a1976ba1a73fb97955521a94ed8ea3952d8dd119a85821fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4625",
    "kind": "arxiv",
    "version": 1
  }
}