Pith Number

pith:XD5NJPGA

pith:2013:XD5NJPGAXA56CZAFTMORG7K7WQ

not attested not anchored not stored refs pending

Observations and three-dimensional ionization structure of the planetary nebula SuWt 2

Ashkbiz Danehkar, Barbara Ercolano, Quentin A. Parker

arxiv:1307.2974 v2 · 2013-07-11 · 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{XD5NJPGAXA56CZAFTMORG7K7WQ}

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	2026-05-18T02:25:40.562635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8fad4bcc0b83be164059b1d137d5fb410bf316d99adea6322802d86892d3bda

Aliases

arxiv: 1307.2974 · arxiv_version: 1307.2974v2 · doi: 10.48550/arxiv.1307.2974 · pith_short_12: XD5NJPGAXA56 · pith_short_16: XD5NJPGAXA56CZAF · pith_short_8: XD5NJPGA

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/XD5NJPGAXA56CZAFTMORG7K7WQ \
  | 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: b8fad4bcc0b83be164059b1d137d5fb410bf316d99adea6322802d86892d3bda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c9c0fd060c2db1f771564beba2c208b18b98c34c22e79400e70457c9f0a4a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-11T05:22:37Z",
    "title_canon_sha256": "c92de2de71b4d079d727586bec200c1d718cf169a13ff17c31be7b9a5ff48350"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2974",
    "kind": "arxiv",
    "version": 2
  }
}