Pith Number

pith:SQU7NURM

pith:2025:SQU7NURMQQZHEGMTCTNTTN5QWM

not attested not anchored not stored refs pending

Relaxing Direct Ptychography Sampling Requirements via Parallax Imaging Insights

Colin Ophus, Georgios Varnavides, Julie Marie Bekkevold, Lewys Jones, Mary C Scott, Stephanie M Ribet

arxiv:2507.18610 v2 · 2025-07-24 · physics.optics · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQU7NURMQQZHEGMTCTNTTN5QWM}

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	2026-07-05T12:02:48.841932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9429f6d22c843272199314db39b7b0b30aa0f6163f68bdcafe8a424529bcca7f

Aliases

arxiv: 2507.18610 · arxiv_version: 2507.18610v2 · doi: 10.48550/arxiv.2507.18610 · pith_short_12: SQU7NURMQQZH · pith_short_16: SQU7NURMQQZHEGMT · pith_short_8: SQU7NURM

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/SQU7NURMQQZHEGMTCTNTTN5QWM \
  | 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: 9429f6d22c843272199314db39b7b0b30aa0f6163f68bdcafe8a424529bcca7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4d66f6ecc189137dc2efcbd47118f36f6152ae5f52f6a94545d96cd2295257b",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-07-24T17:47:00Z",
    "title_canon_sha256": "9dc99dbba113868c27d3eaff8ee23b4a7893683792097b9cccdca9bc277d0e4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18610",
    "kind": "arxiv",
    "version": 2
  }
}