Pith Number

pith:A4LMZE66

pith:2006:A4LMZE66FAWD7DERSTITYNQAI7

not attested not anchored not stored refs pending

Hardness Ratio Estimation in Low Counting X-ray Photometry

J.F.Wu, S.N.Zhang, Y.K.Jin

arxiv:astro-ph/0608579 v1 · 2006-08-27 · 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{A4LMZE66FAWD7DERSTITYNQAI7}

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	2026-07-04T15:19:11.805847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0716cc93de282c3f8c9194d13c360047d9ca4b68dd3c048b5defbfbcce42e2f4

Aliases

arxiv: astro-ph/0608579 · arxiv_version: astro-ph/0608579v1 · doi: 10.48550/arxiv.astro-ph/0608579 · pith_short_12: A4LMZE66FAWD · pith_short_16: A4LMZE66FAWD7DER · pith_short_8: A4LMZE66

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/A4LMZE66FAWD7DERSTITYNQAI7 \
  | 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: 0716cc93de282c3f8c9194d13c360047d9ca4b68dd3c048b5defbfbcce42e2f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6c1f80ca2ab4ec5813591dc4a3f672dd17bbf8fac06d516d32c651b1045c1b1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-08-27T13:32:58Z",
    "title_canon_sha256": "4f4c7849d4d7a5f4cc45ee09bb11d4476b63b3ccc6d8d3bcff34a396e5e42e69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0608579",
    "kind": "arxiv",
    "version": 1
  }
}