Pith Number

pith:LWYZ5K5Q

pith:2025:LWYZ5K5QM34SX342LLD33BAHWO

not attested not anchored not stored refs pending

Adaptive Weighted Total Variation boosted by learning techniques in few-view tomographic imaging

Andrea Sebastiani, Davide Evangelista, Elena Loli Piccolomini, Elena Morotti

arxiv:2501.09845 v1 · 2025-01-16 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LWYZ5K5QM34SX342LLD33BAHWO}

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	2026-07-05T10:02:12.221893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5db19eabb066f92bef9a5ac7bd8407b3a237518d2d408835e8fb0d4f65e86afc

Aliases

arxiv: 2501.09845 · arxiv_version: 2501.09845v1 · doi: 10.48550/arxiv.2501.09845 · pith_short_12: LWYZ5K5QM34S · pith_short_16: LWYZ5K5QM34SX342 · pith_short_8: LWYZ5K5Q

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/LWYZ5K5QM34SX342LLD33BAHWO \
  | 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: 5db19eabb066f92bef9a5ac7bd8407b3a237518d2d408835e8fb0d4f65e86afc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cffaab2250f91bce353e846bd7b2dadbe821f9eccc145e546dcd281b3249bab8",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-01-16T21:20:41Z",
    "title_canon_sha256": "b0821d1036c6214b00a6c22bfb6b60acc3d9669c6fb2082da14cbb4709b52cc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09845",
    "kind": "arxiv",
    "version": 1
  }
}