Pith Number

pith:PEHKSGYE

pith:2007:PEHKSGYEIC5BMOI4ALC6M6HG3D

not attested not anchored not stored refs pending

Speckle noise and dynamic range in coronagraphic images

Andr\'e Ferrari, Claude Aime, Laurent Jolissaint, R\'emi Soummer

arxiv:0706.1739 v1 · 2007-06-12 · 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{PEHKSGYEIC5BMOI4ALC6M6HG3D}

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	2026-07-04T17:04:10.855179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

790ea91b0440ba16391c02c5e678e6d8e4d5ba00a3101d6ef72b53562b11f522

Aliases

arxiv: 0706.1739 · arxiv_version: 0706.1739v1 · doi: 10.48550/arxiv.0706.1739 · pith_short_12: PEHKSGYEIC5B · pith_short_16: PEHKSGYEIC5BMOI4 · pith_short_8: PEHKSGYE

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/PEHKSGYEIC5BMOI4ALC6M6HG3D \
  | 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: 790ea91b0440ba16391c02c5e678e6d8e4d5ba00a3101d6ef72b53562b11f522

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28065fa3bceb3a36de2a9d40a50af24dfac02ec08c89fd58cb5a4826d99b2ea2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-12T16:11:17Z",
    "title_canon_sha256": "b42978dc332733115a09e53e241a8e7a6a722d6b9703d24631ff20551cced429"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.1739",
    "kind": "arxiv",
    "version": 1
  }
}