Pith Number

pith:FTDXSGYO

pith:2021:FTDXSGYOFQMT3FTDHFGDH2DAEA

not attested not anchored not stored refs pending

A hot subdwarf-white dwarf super-Chandrasekhar candidate supernova Ia progenitor

A. Bastian, A. Irrgang, B. N. Barlow, D. Schneider, Ingrid Pelisoli, J. van Roestel, P. Neunteufel, S. Geier, T. Kupfer, U. Heber, V. Schaffenroth

arxiv:2107.09074 v1 · 2021-07-19 · astro-ph.SR · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTDXSGYOFQMT3FTDHFGDH2DAEA}

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	2026-07-05T02:59:25.883295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cc7791b0e2c193d9663394c33e86020229b3eeac0be3e097676e231955dd3c8

Aliases

arxiv: 2107.09074 · arxiv_version: 2107.09074v1 · doi: 10.48550/arxiv.2107.09074 · pith_short_12: FTDXSGYOFQMT · pith_short_16: FTDXSGYOFQMT3FTD · pith_short_8: FTDXSGYO

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/FTDXSGYOFQMT3FTDHFGDH2DAEA \
  | 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: 2cc7791b0e2c193d9663394c33e86020229b3eeac0be3e097676e231955dd3c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a1d7ee36ef024d4cc6d08e1d8e78fe5fa5a67bfbdf4cb2955cbbffc53fff95d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-07-19T18:00:04Z",
    "title_canon_sha256": "37e333909e55dfd041363a0d37c80b20cff3854ddf255a17a0edcc6980416651"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09074",
    "kind": "arxiv",
    "version": 1
  }
}