Pith Number

pith:SY2UUKNK

pith:2005:SY2UUKNKZPTKIJK2ZW5WDPK3AU

not attested not anchored not stored refs pending

The formation of DA white dwarfs with thin hydrogen envelopes

A. H. C\'orsico, E. Garc\'ia-Berro, L. G. Althaus, M. M. Miller Bertolami, P. Gil-Pons

arxiv:astro-ph/0507415 v1 · 2005-07-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SY2UUKNKZPTKIJK2ZW5WDPK3AU}

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	2026-05-18T01:08:58.991579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96354a29aacbe6a4255acdbb61bd5b052e52893e8862afdaf71f450324193998

Aliases

arxiv: astro-ph/0507415 · arxiv_version: astro-ph/0507415v1 · doi: 10.48550/arxiv.astro-ph/0507415 · pith_short_12: SY2UUKNKZPTK · pith_short_16: SY2UUKNKZPTKIJK2 · pith_short_8: SY2UUKNK

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/SY2UUKNKZPTKIJK2ZW5WDPK3AU \
  | 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: 96354a29aacbe6a4255acdbb61bd5b052e52893e8862afdaf71f450324193998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6f988bb1eefeba79a596d44398491983d5837da8fd0570efcd6e6f858f00b45",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-07-18T19:38:04Z",
    "title_canon_sha256": "204dcf624580dea0ea737e3ccfa985e483480817f8e98df5518ed7c624ef402b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0507415",
    "kind": "arxiv",
    "version": 1
  }
}