Pith Number

pith:SDKQOAKP

pith:2013:SDKQOAKP5GM7ELWZLISGC5BEV7

not attested not anchored not stored refs pending

Exact inversion of the conical Radon transform with a fixed opening angle

Gaik Ambartsoumian, Rim Gouia-Zarrad

arxiv:1309.6581 v1 · 2013-09-21 · 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{SDKQOAKP5GM7ELWZLISGC5BEV7}

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	2026-05-18T01:47:26.676400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d507014fe999f22ed95a24617424afed6c761bf537bcf43780f9fe9b23dcd8

Aliases

arxiv: 1309.6581 · arxiv_version: 1309.6581v1 · doi: 10.48550/arxiv.1309.6581 · pith_short_12: SDKQOAKP5GM7 · pith_short_16: SDKQOAKP5GM7ELWZ · pith_short_8: SDKQOAKP

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/SDKQOAKP5GM7ELWZLISGC5BEV7 \
  | 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: 90d507014fe999f22ed95a24617424afed6c761bf537bcf43780f9fe9b23dcd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c66dea32dc77bc5949f5d6ecad4794b9c27f0d39f1ce4a3088fbf88459bb19e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-09-21T11:51:48Z",
    "title_canon_sha256": "a1182bf37a584f7be447ad8d7ccf6241a22a5c1f4b39bacb23354e630c5e33be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6581",
    "kind": "arxiv",
    "version": 1
  }
}