Pith Number

pith:JELBN5LJ

pith:2014:JELBN5LJYPI7OO5OZ354FNAGCN

not attested not anchored not stored refs pending

Mirrors for X-ray telescopes: Fresnel diffraction-based computation of point spread functions from metrology

Daniele Spiga, Lorenzo Raimondi

arxiv:1409.1750 v6 · 2014-09-05 · 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{JELBN5LJYPI7OO5OZ354FNAGCN}

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	2026-05-18T02:31:46.738365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

491616f569c3d1f73baecefbc2b4061369200352c55e3b0eca3ce925411beca3

Aliases

arxiv: 1409.1750 · arxiv_version: 1409.1750v6 · doi: 10.48550/arxiv.1409.1750 · pith_short_12: JELBN5LJYPI7 · pith_short_16: JELBN5LJYPI7OO5O · pith_short_8: JELBN5LJ

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/JELBN5LJYPI7OO5OZ354FNAGCN \
  | 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: 491616f569c3d1f73baecefbc2b4061369200352c55e3b0eca3ce925411beca3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9ee2e4818dcb81bd72c8e915007c9aaa966652ec9eee792995ee5bfd0a93018",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-09-05T11:49:02Z",
    "title_canon_sha256": "06b874978dfbf392d9833b5001de821e8c364a6d6ae249c481d0335a5493e978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1750",
    "kind": "arxiv",
    "version": 6
  }
}