Pith Number

pith:HGFUBXJU

pith:2022:HGFUBXJU4SUHKQAMFAFJ3VX3F4

not attested not anchored not stored refs pending

Ptychopy: GPU framework for ptychographic data analysis

David Vine, Junjing Deng, Ke Yue, Stefan Vogt, Yi Jiang, Youssef Nashed

arxiv:2202.03144 v1 · 2022-01-24 · physics.ins-det · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGFUBXJU4SUHKQAMFAFJ3VX3F4}

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	2026-07-05T03:55:32.820761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

398b40dd34e4a875400c280a9dd6fb2f099eb0096940a04a31f50143e337d4be

Aliases

arxiv: 2202.03144 · arxiv_version: 2202.03144v1 · doi: 10.48550/arxiv.2202.03144 · pith_short_12: HGFUBXJU4SUH · pith_short_16: HGFUBXJU4SUHKQAM · pith_short_8: HGFUBXJU

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/HGFUBXJU4SUHKQAMFAFJ3VX3F4 \
  | 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: 398b40dd34e4a875400c280a9dd6fb2f099eb0096940a04a31f50143e337d4be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b17fbe0835fb16b3f6cfe10fea65a0689b009211c17366b44fab5a77a26a2c0e",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2022-01-24T20:47:16Z",
    "title_canon_sha256": "14de4501b292365acfdcf9bd762fda7618b98b6bfdd7dd825b8d57c3ab8e5cbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.03144",
    "kind": "arxiv",
    "version": 1
  }
}