Pith Number

pith:KQKLZLDK

pith:2004:KQKLZLDK4HXHE3WWZHX5I5XPW7

not attested not anchored not stored refs pending

SDSS J1240-01: A New AM CVn Candidate from the Sloan Digital Sky Survey

(2) Harvard-Smithsonian CfA, (3) Institute of Astronomy, Cambridge), D. Steeghs (2), G. Nelemans (3) ((1) University of Nijmegen, G. Roelofs (1), P. Groot (1), The Netherlands

arxiv:astro-ph/0402042 v1 · 2004-02-02 · 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{KQKLZLDK4HXHE3WWZHX5I5XPW7}

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	2026-07-04T14:13:19.179237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5414bcac6ae1ee726ed6c9efd476efb7e8d7a577b72cc54d0ded86a9f8c21e01

Aliases

arxiv: astro-ph/0402042 · arxiv_version: astro-ph/0402042v1 · doi: 10.48550/arxiv.astro-ph/0402042 · pith_short_12: KQKLZLDK4HXH · pith_short_16: KQKLZLDK4HXHE3WW · pith_short_8: KQKLZLDK

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/KQKLZLDK4HXHE3WWZHX5I5XPW7 \
  | 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: 5414bcac6ae1ee726ed6c9efd476efb7e8d7a577b72cc54d0ded86a9f8c21e01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6af97ac82244fb017e59bf181d7a610db5f718e58b9cc98378c694c218c1090",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-02T14:52:27Z",
    "title_canon_sha256": "64b5cb29f6a70900b6a6decda805fbc9b41b21e4c6a3837a1cbcfc8fd82a20db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402042",
    "kind": "arxiv",
    "version": 1
  }
}