Pith Number

pith:FPKDM2TK

pith:2006:FPKDM2TKE7GDBEAPHFFAUQRVLZ

not attested not anchored not stored refs pending

First science with SALT: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2

A. Christians, A. Koeslag, A. Riddick, A. Swat, B. Meyer, C. du Plessis, C. Fourie, C. Gumede, C. Sass, D.A.H. Buckley, D.B. Carter, D. Bester, D. Metcalfe, D. O'Donoghue, E. Romero-Colmenero, F. Ebrahim, F. Marang, F. Osman, F. van Wyk, G.P. Evans, G. Swart, H. Gajjar, H. Kriel, H. Rall, H. Schalekamp, H. Steyn, J. Brink, J.G. Meiring, J. O'Connor, J. Stoffels, J. Stoltz, J. Swiegers, J.W. Menzies, L.A. Balona, L. Botha, L. Nel, M. de Kock, M. Gordon, N. Sessions, P.A. Charles, P. Fourie, P. Menzies, P. Vaisanen, R. Emmerich, S.B. Potter, S. Siyengo, T. Tiheli, V. Sopela, W. Esterhuyse, W.P. Koorts, W. Whittaker

arxiv:astro-ph/0607266 v1 · 2006-07-12 · 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{FPKDM2TKE7GDBEAPHFFAUQRVLZ}

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	2026-07-04T16:59:06.951342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bd4366a6a27cc30900f394a0a42355e6ce56daaa4199982e10a3892bfbf1671

Aliases

arxiv: astro-ph/0607266 · arxiv_version: astro-ph/0607266v1 · doi: 10.48550/arxiv.astro-ph/0607266 · pith_short_12: FPKDM2TKE7GD · pith_short_16: FPKDM2TKE7GDBEAP · pith_short_8: FPKDM2TK

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/FPKDM2TKE7GDBEAPHFFAUQRVLZ \
  | 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: 2bd4366a6a27cc30900f394a0a42355e6ce56daaa4199982e10a3892bfbf1671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3395f55f65d53da756af8f742c805b927c65e3ccc959c04be9168475f966441d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-12T19:28:34Z",
    "title_canon_sha256": "2321ad89d0d171eed92902fc3e814c54026e8b114027f806576efceebbf78038"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607266",
    "kind": "arxiv",
    "version": 1
  }
}