Pith Number

pith:IELEK3TL

pith:2003:IELEK3TLQVEJPBGXIZS4YFH26C

not attested not anchored not stored refs pending

Binaries discovered by the SPY project. III. HE2209-1444: a massive, short period double degenerate

C.A. Karl, D. Koester, D. Reimers, G. Nelemans, N. Christlieb, R. Napiwotzki, U. Heber

arxiv:astro-ph/0309730 v1 · 2003-09-26 · 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{IELEK3TLQVEJPBGXIZS4YFH26C}

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	2026-07-04T16:51:45.957018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4116456e6b85489784d74665cc14faf0a6e4a1499cba560e29e60d6ec7721e0f

Aliases

arxiv: astro-ph/0309730 · arxiv_version: astro-ph/0309730v1 · doi: 10.48550/arxiv.astro-ph/0309730 · pith_short_12: IELEK3TLQVEJ · pith_short_16: IELEK3TLQVEJPBGX · pith_short_8: IELEK3TL

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/IELEK3TLQVEJPBGXIZS4YFH26C \
  | 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: 4116456e6b85489784d74665cc14faf0a6e4a1499cba560e29e60d6ec7721e0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0be64f4e6c7ff5c105bcaaf62bf5487a41d0ccc79b7fb784b96ba07a2d87d422",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-26T15:27:16Z",
    "title_canon_sha256": "db3cfe7a5d53959dbf241306032249a82e9fb941b1ff66a65594d4e565516396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309730",
    "kind": "arxiv",
    "version": 1
  }
}