Pith Number

pith:PQD7CH7X

pith:2007:PQD7CH7XVGGCL3A6UATN3DD5Z3

not attested not anchored not stored refs pending

Improving the speckle noise attenuation of simultaneous spectral differential imaging with a focal plane holographic diffuser

Christian Marois, Daniel Nadeau \'Etienne Artigau, David Lafreni\`ere, Mathilde Beaulieu, Ren\'e Doyon

arxiv:astro-ph/0703093 v2 · 2007-03-05 · 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{PQD7CH7XVGGCL3A6UATN3DD5Z3}

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	2026-05-18T04:29:05.968647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c07f11ff7a98c25ec1ea026dd8c7dcedcf775ce16f2ac1f0355d91293253180

Aliases

arxiv: astro-ph/0703093 · arxiv_version: astro-ph/0703093v2 · doi: 10.48550/arxiv.astro-ph/0703093 · pith_short_12: PQD7CH7XVGGC · pith_short_16: PQD7CH7XVGGCL3A6 · pith_short_8: PQD7CH7X

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/PQD7CH7XVGGCL3A6UATN3DD5Z3 \
  | 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: 7c07f11ff7a98c25ec1ea026dd8c7dcedcf775ce16f2ac1f0355d91293253180

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58420d2dcef3767a8addeec71dbde9942c22f2ad95247ae2aa3eac0d16fde47e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-05T21:59:36Z",
    "title_canon_sha256": "491d9c32e8e3e9be0f53fd677d24ed1f991ab1a7bf64aa20e2f2a1e9174e5267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703093",
    "kind": "arxiv",
    "version": 2
  }
}