Pith Number

pith:QNQKQH2E

pith:2005:QNQKQH2EBYZIBX5FBYTJQV4Q6L

not attested not anchored not stored refs pending

X-ray Pulsations in the Supersoft X-ray Binary CAL 83

A.P. Cowley, P.C. Schmidtke

arxiv:astro-ph/0507145 v2 · 2005-07-06 · 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{QNQKQH2EBYZIBX5FBYTJQV4Q6L}

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	2026-05-18T01:07:31.026242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8360a81f440e3280dfa50e26985790f2ed2c7baf03a9d795d3a5a7330ba7b02a

Aliases

arxiv: astro-ph/0507145 · arxiv_version: astro-ph/0507145v2 · doi: 10.48550/arxiv.astro-ph/0507145 · pith_short_12: QNQKQH2EBYZI · pith_short_16: QNQKQH2EBYZIBX5F · pith_short_8: QNQKQH2E

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/QNQKQH2EBYZIBX5FBYTJQV4Q6L \
  | 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: 8360a81f440e3280dfa50e26985790f2ed2c7baf03a9d795d3a5a7330ba7b02a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83740dc622f3520261cbd3e28331625486334a25699b360d9f876a686cf635b8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-07-06T19:45:35Z",
    "title_canon_sha256": "d1d853643e73b5d6e61b910586120657efba0fc98f937391d121768c0ffd2696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0507145",
    "kind": "arxiv",
    "version": 2
  }
}