Pith Number

pith:SYG6FNPE

pith:2006:SYG6FNPEQC6OJUSOB5QLFFMO2N

not attested not anchored not stored refs pending

Hot subdwarfs from the ESO Supernova Ia Progenitor Survey: II. Atmospheric parameters of subdwarf O stars

A. Stroeer, D. Reimers, N. Christlieb, R. Napiwotzki, S. Dreizler, T. Lisker, U. Heber

arxiv:astro-ph/0609718 v1 · 2006-09-26 · 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{SYG6FNPEQC6OJUSOB5QLFFMO2N}

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	2026-07-04T16:59:27.382945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

960de2b5e480bce4d24e0f60b2958ed35d323f13d0930736dbe24d53139302e8

Aliases

arxiv: astro-ph/0609718 · arxiv_version: astro-ph/0609718v1 · doi: 10.48550/arxiv.astro-ph/0609718 · pith_short_12: SYG6FNPEQC6O · pith_short_16: SYG6FNPEQC6OJUSO · pith_short_8: SYG6FNPE

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/SYG6FNPEQC6OJUSOB5QLFFMO2N \
  | 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: 960de2b5e480bce4d24e0f60b2958ed35d323f13d0930736dbe24d53139302e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d704a3f3efe772a87c146c1f361c673effd8664e1354242a10b17bf48c352408",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-26T17:14:04Z",
    "title_canon_sha256": "29ef6e26836da84dc2cbc52c95c7f6707496a5a5a723e1a4ec8a8833f2db3721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609718",
    "kind": "arxiv",
    "version": 1
  }
}