Pith Number

pith:TC2VPZX3

pith:2022:TC2VPZX3JEOWP2PCH5IWGS4SZK

not attested not anchored not stored refs pending

Rethinking data-driven point spread function modeling with a differentiable optical model

Jean-Luc Starck, Martin Kilbinger, Pierre-Antoine Frugier, Tobias Liaudat

arxiv:2203.04908 v2 · 2022-03-09 · astro-ph.IM · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TC2VPZX3JEOWP2PCH5IWGS4SZK}

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	2026-07-05T05:43:47.758154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98b557e6fb491d67e9e23f51634b92cabad3e2d8e8a565a29573d94e9d6446f5

Aliases

arxiv: 2203.04908 · arxiv_version: 2203.04908v2 · doi: 10.48550/arxiv.2203.04908 · pith_short_12: TC2VPZX3JEOW · pith_short_16: TC2VPZX3JEOWP2PC · pith_short_8: TC2VPZX3

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/TC2VPZX3JEOWP2PCH5IWGS4SZK \
  | 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: 98b557e6fb491d67e9e23f51634b92cabad3e2d8e8a565a29573d94e9d6446f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6048c2a3fd7d8f08d4f16b1ef39134385ff653c2eda389c0267a14fd7336434",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-03-09T17:39:18Z",
    "title_canon_sha256": "670b2b59b90dd14135113f056821dcea882086c37cca1a4025b31b7938958891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.04908",
    "kind": "arxiv",
    "version": 2
  }
}