Pith Number

pith:IKRF6WLW

pith:2004:IKRF6WLWMDAQEIVHPJEWZQJRXS

not attested not anchored not stored refs pending

On Possible Oxygen/Neon White Dwarfs: H1504+65 and the White Dwarf Donors in Ultracompact X-ray Binaries

K. Werner, N.J. Hammer, S. Dreizler, T. Nagel, T. Rauch

arxiv:astro-ph/0410690 v1 · 2004-10-28 · 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{IKRF6WLWMDAQEIVHPJEWZQJRXS}

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	2026-07-04T14:13:51.457046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a25f597660c10222a77a496cc131bcb2455f38c57f39a49b3ceebf3e270830

Aliases

arxiv: astro-ph/0410690 · arxiv_version: astro-ph/0410690v1 · doi: 10.48550/arxiv.astro-ph/0410690 · pith_short_12: IKRF6WLWMDAQ · pith_short_16: IKRF6WLWMDAQEIVH · pith_short_8: IKRF6WLW

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/IKRF6WLWMDAQEIVHPJEWZQJRXS \
  | 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: 42a25f597660c10222a77a496cc131bcb2455f38c57f39a49b3ceebf3e270830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c30f2c82f4a464fe857b398821cf7f70988673708ae911b07908a94062c0175e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-10-28T11:15:57Z",
    "title_canon_sha256": "cca07c969ca929abf5a44d14eab1950176264f54730e4e5443be31990ba64973"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0410690",
    "kind": "arxiv",
    "version": 1
  }
}