Pith Number

pith:HAXWNK7Q

pith:2021:HAXWNK7QVN5CRTEX3IZCHFH43U

not attested not anchored not stored refs pending

Determination of Planetary Nebulae angular diameters from radio continuum Spectral Energy Distribution modeling

D. Urosevic, I. S. Bojicic, M. D. Filipovic, Q. A. Parker, T. Galvin

arxiv:2103.00004 v2 · 2021-02-26 · astro-ph.GA · astro-ph.IM · 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{HAXWNK7QVN5CRTEX3IZCHFH43U}

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	2026-07-05T02:23:28.035527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

382f66abf0ab7a28cc97da322394fcdd2b6d4309287508f4099eac806aeb8426

Aliases

arxiv: 2103.00004 · arxiv_version: 2103.00004v2 · doi: 10.48550/arxiv.2103.00004 · pith_short_12: HAXWNK7QVN5C · pith_short_16: HAXWNK7QVN5CRTEX · pith_short_8: HAXWNK7Q

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/HAXWNK7QVN5CRTEX3IZCHFH43U \
  | 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: 382f66abf0ab7a28cc97da322394fcdd2b6d4309287508f4099eac806aeb8426

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02ba7e178a3d0572537bf5e3b15d1c28149b655edf2a88dcedd9f0a4a259565",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-26T05:03:28Z",
    "title_canon_sha256": "ac669af76e1f41e1dc10e096e0bec1599a6581eced23d3a386cebf5e52e67869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.00004",
    "kind": "arxiv",
    "version": 2
  }
}