Pith Number

pith:6PBAKU2I

pith:2020:6PBAKU2IRABUW6DFKLXF4BMIID

not attested not anchored not stored refs pending

Point Spread Function Engineering for 3D Imaging of Space Debris using a Continuous Exact l0 Penalty (CEL0) Based Algorithm

Chao Wang, Raymond H. Chan, Robert J. Plemmons, Sudhakar Prasad

arxiv:2006.02858 v1 · 2020-06-02 · eess.IV · cs.NA · math.NA · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PBAKU2IRABUW6DFKLXF4BMIID}

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	2026-07-05T01:08:00.876613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3c205534888034b786552ee5e058840fc899b241b7d34d97979153ab58ed576

Aliases

arxiv: 2006.02858 · arxiv_version: 2006.02858v1 · doi: 10.48550/arxiv.2006.02858 · pith_short_12: 6PBAKU2IRABU · pith_short_16: 6PBAKU2IRABUW6DF · pith_short_8: 6PBAKU2I

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/6PBAKU2IRABUW6DFKLXF4BMIID \
  | 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: f3c205534888034b786552ee5e058840fc899b241b7d34d97979153ab58ed576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7d13164ed283d602b6641a998203d4fd13ba42e972f3e02c664fab0bf922f85",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-06-02T19:37:58Z",
    "title_canon_sha256": "8517080edd8338ae9d03906449dbe04b44f6e0c16f6aa6a5cc81e593cec6ec22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.02858",
    "kind": "arxiv",
    "version": 1
  }
}