Pith Number

pith:BUPG6OQ5

pith:2001:BUPG6OQ5MUX54GBHPDZP7PVJLA

not attested not anchored not stored refs pending

Shape reconstruction in X-ray tomography from a small number of projections using deformable models

A. Mohammad-Djafari (Laboratoire des Signaux et Syst\`emes, CNRS-UPS-SUPELEC, France), Gif-sur-Yvette, Indiana, Ken Sauer (Department of Electrical Engineering, University of Notre Dame, USA)

arxiv:physics/0111117 v1 · 2001-11-14 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUPG6OQ5MUX54GBHPDZP7PVJLA}

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	2026-07-04T14:43:31.862265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d1e6f3a1d652fde182778f2ffbea958125072afd8dbb95b9b820ed951540e23

Aliases

arxiv: physics/0111117 · arxiv_version: physics/0111117v1 · doi: 10.48550/arxiv.physics/0111117 · pith_short_12: BUPG6OQ5MUX5 · pith_short_16: BUPG6OQ5MUX54GBH · pith_short_8: BUPG6OQ5

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/BUPG6OQ5MUX54GBHPDZP7PVJLA \
  | 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: 0d1e6f3a1d652fde182778f2ffbea958125072afd8dbb95b9b820ed951540e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b189466379688a717a875050e0b0a0158a82a9c8f685214d6126a386ed298d30",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.data-an",
    "submitted_at": "2001-11-14T10:49:46Z",
    "title_canon_sha256": "daa5f417c73cd5d5217ae9573b2f1457cae84a0679c68cf5aa259eba6f1fbbe7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0111117",
    "kind": "arxiv",
    "version": 1
  }
}