Pith Number

pith:PH4MYUFI

pith:2020:PH4MYUFI6YVCQHUDXG2LB74OPE

not attested not anchored not stored refs pending

Discovery of a pre-cataclysmic binary with unusual chromaticity of the eclipsed white dwarf by the GPX Survey

Alan Fitzsimmons, Alessandro Marchini, Alexander Popov, Artem Burdanov, Christopher Gibson, Eleonora Antokhina, Emmanu\"el Jehin, Fabio Salvaggio, Igor Antokhin, Khalid Barkaoui, Micha\"el Gillon, \"Ozg\"ur Ba\c{s}t\"urk, Paul Benni, Riccardo Papini, Vadim Krushinsky, Varvara Brazhko, Zouhair Benkhaldoun

arxiv:2002.08031 v1 · 2020-02-19 · 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{PH4MYUFI6YVCQHUDXG2LB74OPE}

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	2026-07-05T00:45:23.672993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f8cc50a8f62a281e83b9b4b0ff8e792678cdee90f947654000b9eac4b15499

Aliases

arxiv: 2002.08031 · arxiv_version: 2002.08031v1 · doi: 10.48550/arxiv.2002.08031 · pith_short_12: PH4MYUFI6YVC · pith_short_16: PH4MYUFI6YVCQHUD · pith_short_8: PH4MYUFI

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/PH4MYUFI6YVCQHUDXG2LB74OPE \
  | 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: 79f8cc50a8f62a281e83b9b4b0ff8e792678cdee90f947654000b9eac4b15499

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19b033b11bf69dd3c15f2fed9b0c54c56eceddc7f77d174f0ab118fa28fb319a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-02-19T07:05:26Z",
    "title_canon_sha256": "940311e8372ef7215069bfd1a931dbbb82e9c5532aff7dcc95140ad637825198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08031",
    "kind": "arxiv",
    "version": 1
  }
}