Pith Number

pith:NF3A4JHQ

pith:2017:NF3A4JHQGBUTHHW6MT76UZB5HV

not attested not anchored not stored refs pending

Study of cost functionals for ptychographic phase retrieval to improve the robustness against noise, and a proposal for another noise-robust ptychographic phase retrieval scheme

A.P. Konijnenberg, H.P. Urbach, W.M.J. Coene

arxiv:1703.10892 v1 · 2017-03-31 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NF3A4JHQGBUTHHW6MT76UZB5HV}

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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	2026-05-18T00:46:58.886205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69760e24f03069339ede64ffea643d3d5d0431d325212d19df1a3a731d653775

Aliases

arxiv: 1703.10892 · arxiv_version: 1703.10892v1 · doi: 10.48550/arxiv.1703.10892 · pith_short_12: NF3A4JHQGBUT · pith_short_16: NF3A4JHQGBUTHHW6 · pith_short_8: NF3A4JHQ

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/NF3A4JHQGBUTHHW6MT76UZB5HV \
  | 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: 69760e24f03069339ede64ffea643d3d5d0431d325212d19df1a3a731d653775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55e6889912fc129fbd7d20a38e7c15893cfadac71ff2aec5f98890dcb20aff6d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-03-31T13:32:58Z",
    "title_canon_sha256": "6a8e4e6129671a34f37aa1b2829b6ecf09c2b3323f55daa2bb5db411472d62e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10892",
    "kind": "arxiv",
    "version": 1
  }
}