Pith Number

pith:5X7NQ63G

pith:2018:5X7NQ63GZCT3AEU2NBX3RJJQ3Q

not attested not anchored not stored refs pending

A Fourier-based Solving Approach for the Transport of Intensity Equation without Typical Restrictions

Lennart Wefelnberg, Soheil Mehrabkhani, Thomas Schneider

arxiv:1803.01714 v1 · 2018-03-01 · 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{5X7NQ63GZCT3AEU2NBX3RJJQ3Q}

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	2026-05-18T00:16:25.443181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edfed87b66c8a7b0129a686fb8a530dc24433f58ed81a78675d2e8626878a9ee

Aliases

arxiv: 1803.01714 · arxiv_version: 1803.01714v1 · doi: 10.48550/arxiv.1803.01714 · pith_short_12: 5X7NQ63GZCT3 · pith_short_16: 5X7NQ63GZCT3AEU2 · pith_short_8: 5X7NQ63G

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/5X7NQ63GZCT3AEU2NBX3RJJQ3Q \
  | 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: edfed87b66c8a7b0129a686fb8a530dc24433f58ed81a78675d2e8626878a9ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90e83a0f3a867d4df927c1682ba4396039d250424ee4f68dca0c84fa24c2671f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-03-01T16:05:10Z",
    "title_canon_sha256": "a77b1ac292c4ddc8ecbbf640b8ce69c49fa78270036c4494ae1dabcf38155da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01714",
    "kind": "arxiv",
    "version": 1
  }
}