Pith Number

pith:WY2CLNUR

pith:2021:WY2CLNURRO4WCGKK2EDRZ4MY6J

not attested not anchored not stored refs pending

The focal-plane assisted pyramid wavefront sensor: enabling frame-by-frame optical gains tracking

Beno\^it Neichel, Jean-Fran\c{c}ois Sauvage, Olivier Fauvarque, Thierry Fusco, Vincent Chambouleyron

arxiv:2103.02297 v1 · 2021-03-03 · 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{WY2CLNURRO4WCGKK2EDRZ4MY6J}

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	2026-07-05T02:39:38.199875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b63425b6918bb961194ad1071cf198f27f4487bcf7c43099d0209e33d7f71897

Aliases

arxiv: 2103.02297 · arxiv_version: 2103.02297v1 · doi: 10.48550/arxiv.2103.02297 · pith_short_12: WY2CLNURRO4W · pith_short_16: WY2CLNURRO4WCGKK · pith_short_8: WY2CLNUR

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/WY2CLNURRO4WCGKK2EDRZ4MY6J \
  | 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: b63425b6918bb961194ad1071cf198f27f4487bcf7c43099d0209e33d7f71897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45443e34c7873208cc3787a31ca40ddc1e3b4d9e66fd761ce05c949c3501464b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-03-03T10:20:40Z",
    "title_canon_sha256": "ea477ee7e88bfa47a37edc5bc4627ba775d1eea2b4fb4e74fbe1ee08cda25035"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.02297",
    "kind": "arxiv",
    "version": 1
  }
}