Pith Number

pith:GFWDJHHW

pith:2019:GFWDJHHWRZN7R4XPVCG4MBG2LM

not attested not anchored not stored refs pending

Algorithm for the reconstruction of dynamic objects in CT-scanning using optical flow

Koen Ruymbeek, Wim Vanroose

arxiv:1905.00723 v1 · 2019-04-17 · eess.IV · math.DS · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GFWDJHHWRZN7R4XPVCG4MBG2LM}

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	2026-05-17T23:47:09.497936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

316c349cf68e5bf8f2efa88dc604da5b0365876e79e7a061e057d3a7bbd7e946

Aliases

arxiv: 1905.00723 · arxiv_version: 1905.00723v1 · doi: 10.48550/arxiv.1905.00723 · pith_short_12: GFWDJHHWRZN7 · pith_short_16: GFWDJHHWRZN7R4XP · pith_short_8: GFWDJHHW

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/GFWDJHHWRZN7R4XPVCG4MBG2LM \
  | 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: 316c349cf68e5bf8f2efa88dc604da5b0365876e79e7a061e057d3a7bbd7e946

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ef8c3a9a1e3a77dab52e80090c970e27049a5c963f59b41df5d90a24eb1a9e6",
    "cross_cats_sorted": [
      "math.DS",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-04-17T20:05:46Z",
    "title_canon_sha256": "855605af940701383ced8b415573d6e65723fc1b51400c7405c69cac27d6ca0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00723",
    "kind": "arxiv",
    "version": 1
  }
}