Pith Number

pith:Y7JFT3CQ

pith:2016:Y7JFT3CQKCH23BSBUDH2L4OMW2

not attested not anchored not stored refs pending

The double-degenerate, super-Chandrasekhar nucleus of the planetary nebula Henize 2-428

B. Miszalski, D. Jones, H. M. J. Boffin, M. M. Kotze, M. M. Rubio-D\'iez, M. Santander-Garc\'ia, P. Rodr\'iguez-Gil, R. L. M. Corradi

arxiv:1609.00178 v1 · 2016-09-01 · 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{Y7JFT3CQKCH23BSBUDH2L4OMW2}

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	2026-05-18T01:06:26.675624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7d259ec50508fad8641a0cfa5f1ccb6838596554140908dd579c4fa7a3cd128

Aliases

arxiv: 1609.00178 · arxiv_version: 1609.00178v1 · doi: 10.48550/arxiv.1609.00178 · pith_short_12: Y7JFT3CQKCH2 · pith_short_16: Y7JFT3CQKCH23BSB · pith_short_8: Y7JFT3CQ

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/Y7JFT3CQKCH23BSBUDH2L4OMW2 \
  | 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: c7d259ec50508fad8641a0cfa5f1ccb6838596554140908dd579c4fa7a3cd128

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c96c8b51a70aa33521fe6d12603bf9e66fe549f1868b4779e3e704fde2005f1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-09-01T10:24:52Z",
    "title_canon_sha256": "68aa7a292271eec52c7be109cc89b876cf1f08e1b27cea14eec6468788cbbfad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00178",
    "kind": "arxiv",
    "version": 1
  }
}