Pith Number

pith:3T6FUIYI

pith:2025:3T6FUIYIKS2V7G5JUFFFXDQLYR

not attested not anchored not stored refs pending

Analytic Fourier ptychotomography for volumetric refractive index imaging

Changhuei Yang, Haowen Zhou, Oumeng Zhang, Panlang Lyu, Reinaldo Alcalde, Ruizhi Cao, Shi Zhao, Zhenyu Dong

arxiv:2504.16247 v1 · 2025-04-22 · 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{3T6FUIYIKS2V7G5JUFFFXDQLYR}

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	2026-07-05T10:52:43.727910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcfc5a230854b55f9ba9a14a5b8e0bc47d536a8cd86a944d24b6072314ae4cb9

Aliases

arxiv: 2504.16247 · arxiv_version: 2504.16247v1 · doi: 10.48550/arxiv.2504.16247 · pith_short_12: 3T6FUIYIKS2V · pith_short_16: 3T6FUIYIKS2V7G5J · pith_short_8: 3T6FUIYI

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/3T6FUIYIKS2V7G5JUFFFXDQLYR \
  | 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: dcfc5a230854b55f9ba9a14a5b8e0bc47d536a8cd86a944d24b6072314ae4cb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ebbcf410261bd98c030b6f38aba143585a18774aad5c10ef9869831d06694dd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-04-22T20:21:33Z",
    "title_canon_sha256": "c5a0e578657d629104357cff45a32325084e4970daa68327db7d132496e753ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16247",
    "kind": "arxiv",
    "version": 1
  }
}