Pith Number

pith:YRZX5VZ5

pith:2008:YRZX5VZ5NWZFZTGJFPPH4C3CZD

not attested not anchored not stored refs pending

Spectral analysis of 636 white dwarf - M star binaries from the Sloan Digital Sky Survey

(2) Institut f\"ur Astrophysik, (3) Institute of Astronomy, Derek Homeier (2), Georg-August-Universit\"at G\"ottingen, Katholieke Universiteit Leuven), Ren\'e Heller (1), Roy {\O}stensen (3) ((1) Hamburger Sternwarte, Stefan Dreizler (2), Universit\"at Hamburg

arxiv:0811.1508 v2 · 2008-11-10 · 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{YRZX5VZ5NWZFZTGJFPPH4C3CZD}

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	2026-05-18T02:42:52.796057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4737ed73d6db25cccc92bde7e0b62c8ede682d664ad2fb19349075ef05de4c7

Aliases

arxiv: 0811.1508 · arxiv_version: 0811.1508v2 · doi: 10.48550/arxiv.0811.1508 · pith_short_12: YRZX5VZ5NWZF · pith_short_16: YRZX5VZ5NWZFZTGJ · pith_short_8: YRZX5VZ5

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/YRZX5VZ5NWZFZTGJFPPH4C3CZD \
  | 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: c4737ed73d6db25cccc92bde7e0b62c8ede682d664ad2fb19349075ef05de4c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b8c2e521527c92829dbef3b329e87a183b1560d1f1e1583ac45dd3750d4bc86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-10T16:12:08Z",
    "title_canon_sha256": "b9f20f77bd77675134a02cbbfa9bc9e35db38bb9684797677db45009774f38bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1508",
    "kind": "arxiv",
    "version": 2
  }
}