Pith Number

pith:5QIQB3YS

pith:2023:5QIQB3YSTX266DFFGGAYIEDPC6

not attested not anchored not stored refs pending

Convergence properties of gradient methods for blind ptychography

Oleh Melnyk

arxiv:2306.08750 v1 · 2023-06-14 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QIQB3YSTX266DFFGGAYIEDPC6}

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	2026-07-05T06:20:55.880148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec1100ef129df5ef0ca5318184106f17887805972bb841fd5ebe66bbc8a9bb1a

Aliases

arxiv: 2306.08750 · arxiv_version: 2306.08750v1 · doi: 10.48550/arxiv.2306.08750 · pith_short_12: 5QIQB3YSTX26 · pith_short_16: 5QIQB3YSTX266DFF · pith_short_8: 5QIQB3YS

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/5QIQB3YSTX266DFFGGAYIEDPC6 \
  | 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: ec1100ef129df5ef0ca5318184106f17887805972bb841fd5ebe66bbc8a9bb1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e4f1c7dd97e94054019952b267e58f279e76e2afd58bfc2e389bb0fab1acc2e",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-06-14T21:21:35Z",
    "title_canon_sha256": "fbbba842d165c3493e4e70a1fac235662040929b770cc663a4437009d352250b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.08750",
    "kind": "arxiv",
    "version": 1
  }
}