Pith Number

pith:LPPG3WFJ

pith:2026:LPPG3WFJDQY7IWLIU6UT7ZDCWT

not attested not anchored not stored refs pending

Universal Phase Contrast in Micro-CT Systems

Alberto Astolfo, Alessandro Olivo, Charlotte K. Hagen, David Bate, Grammatiki Lioliou, Marco Endrizzi

arxiv:2607.29478 v1 · 2026-07-31 · physics.optics · physics.app-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPPG3WFJDQY7IWLIU6UT7ZDCWT}

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	2026-08-03T01:35:29.270224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bde6dd8a91c31f45968a7a93fe462b4e7cebf45bb7529d8613679990e8a642a

Aliases

arxiv: 2607.29478 · arxiv_version: 2607.29478v1 · doi: 10.48550/arxiv.2607.29478 · pith_short_12: LPPG3WFJDQY7 · pith_short_16: LPPG3WFJDQY7IWLI · pith_short_8: LPPG3WFJ

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/LPPG3WFJDQY7IWLIU6UT7ZDCWT \
  | 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: 5bde6dd8a91c31f45968a7a93fe462b4e7cebf45bb7529d8613679990e8a642a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ad597406548a08df9b4bac99ebb178cb35ec433f71be980d6a0b99d88bb6793",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.ins-det"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-07-31T14:41:51Z",
    "title_canon_sha256": "29aa232eb61ba6dc13569a162c6bfce28a07535f1679ede3978ee940b7ab3ba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29478",
    "kind": "arxiv",
    "version": 1
  }
}