Pith Number

pith:EFGO4CXF

pith:2019:EFGO4CXF5ICXGTTII75EQDPKLR

not attested not anchored not stored refs pending

A Convolutional Forward and Back-Projection Model for Fan-Beam Geometry

Alireza Entezari, Kai Zhang

arxiv:1907.10526 v1 · 2019-07-24 · eess.IV · cs.CV · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFGO4CXF5ICXGTTII75EQDPKLR}

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	2026-05-17T23:39:37.656396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

214cee0ae5ea05734e6847fa480dea5c573848842c5037c4dd2e90f5956bee94

Aliases

arxiv: 1907.10526 · arxiv_version: 1907.10526v1 · doi: 10.48550/arxiv.1907.10526 · pith_short_12: EFGO4CXF5ICX · pith_short_16: EFGO4CXF5ICXGTTI · pith_short_8: EFGO4CXF

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/EFGO4CXF5ICXGTTII75EQDPKLR \
  | 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: 214cee0ae5ea05734e6847fa480dea5c573848842c5037c4dd2e90f5956bee94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad82b93bc50dc8cd646563e7e0201b75b83150e0d278a0a02860789ecc41523f",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-07-24T15:39:41Z",
    "title_canon_sha256": "5fb493be10a75177cb721b3e521bb1ad86f7fbf15518e7cec2edfa5f27f45c2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10526",
    "kind": "arxiv",
    "version": 1
  }
}