Pith Number

pith:P4WXI6VT

pith:2013:P4WXI6VTYENUB7S7TEJ4PLK4WD

not attested not anchored not stored refs pending

Kn 26, a New Quadrupolar Planetary Nebula

(2) CSIC, 3), (3) Universidade de Vigo, (4) Instituto de Astronomia y Meteorologia, (5) Instituto de Astronomia, Gerardo Ramos-Larios (4), Guadalajara, Luis F. Miranda (2, Martin A. Guerrero (1), Roberto Vazquez (5) ((1) IAA-CSIC, UNAM)

arxiv:1301.3149 v1 · 2013-01-14 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4WXI6VTYENUB7S7TEJ4PLK4WD}

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	2026-05-18T01:52:12.370214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f2d747ab3c11b40fe5f9913c7ad5cb0d3dfbbebe2c4dc0e2fb8acb4483c1328

Aliases

arxiv: 1301.3149 · arxiv_version: 1301.3149v1 · doi: 10.48550/arxiv.1301.3149 · pith_short_12: P4WXI6VTYENU · pith_short_16: P4WXI6VTYENUB7S7 · pith_short_8: P4WXI6VT

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/P4WXI6VTYENUB7S7TEJ4PLK4WD \
  | 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: 7f2d747ab3c11b40fe5f9913c7ad5cb0d3dfbbebe2c4dc0e2fb8acb4483c1328

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31574fd19052ec2665f3454019884deb974537dbb59845a33bd486ff2da520be",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-01-14T21:02:29Z",
    "title_canon_sha256": "399c0d33c23e4c08d95f617a7658dab463a2cbdb6f8ed76387f2c0dcf19698c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3149",
    "kind": "arxiv",
    "version": 1
  }
}