Pith Number

pith:AHRN5TNO

pith:2020:AHRN5TNOTCD76EKIIZOI35WE5A

not attested not anchored not stored refs pending

The cooling-down central star of the planetary nebula SwSt\,1: a late thermal pulse in a massive post-AGB star?

Albert A. Zijlstra, Helge Todt, Karolina Borek, Marcin Hajduk, Peter A. M. van Hoof, Wolf-Rainer Hamann

arxiv:2009.14616 v1 · 2020-09-30 · 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{AHRN5TNOTCD76EKIIZOI35WE5A}

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	2026-07-05T01:39:21.224712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e2decdae9887ff1148465c8df6c4e83cd7f562b370e9f0444efe899b965359

Aliases

arxiv: 2009.14616 · arxiv_version: 2009.14616v1 · doi: 10.48550/arxiv.2009.14616 · pith_short_12: AHRN5TNOTCD7 · pith_short_16: AHRN5TNOTCD76EKI · pith_short_8: AHRN5TNO

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/AHRN5TNOTCD76EKIIZOI35WE5A \
  | 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: 01e2decdae9887ff1148465c8df6c4e83cd7f562b370e9f0444efe899b965359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5c9ac07a3d348785a56c4d3c3a0548e2bf18e80e369242f8d6405a9e1a9d088",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-30T12:42:06Z",
    "title_canon_sha256": "6defdcea000c3fe72180e5900a511b4bb68010a40809ca2fda8e015442977bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.14616",
    "kind": "arxiv",
    "version": 1
  }
}