Pith Number

pith:EWT34VIV

pith:2011:EWT34VIVRMWJEMCYA6USXVJAR7

not attested not anchored not stored refs pending

Optics for X-ray telescopes: analytical treatment of the off-axis effective area of mirrors in optical modules

Daniele Spiga

arxiv:1101.0629 v5 · 2011-01-03 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWT34VIVRMWJEMCYA6USXVJAR7}

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	2026-05-18T04:25:48.743917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25a7be55158b2c92305807a92bd5208ffacdf7e68c0003fac8be7e2b9c9458df

Aliases

arxiv: 1101.0629 · arxiv_version: 1101.0629v5 · doi: 10.48550/arxiv.1101.0629 · pith_short_12: EWT34VIVRMWJ · pith_short_16: EWT34VIVRMWJEMCY · pith_short_8: EWT34VIV

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/EWT34VIVRMWJEMCYA6USXVJAR7 \
  | 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: 25a7be55158b2c92305807a92bd5208ffacdf7e68c0003fac8be7e2b9c9458df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d2a9e131004421a22148d845886ff1176acb5f332b015c7801f8d092ef58e4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-01-03T23:17:41Z",
    "title_canon_sha256": "a603def7a09d8eacf24a990039f29d55c3b0fd876d3b1e1bbe65bae6808930f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0629",
    "kind": "arxiv",
    "version": 5
  }
}