Pith Number

pith:DALXJAHL

pith:2021:DALXJAHLDXRJSK5CVWSOGXBZ75

not attested not anchored not stored refs pending

Sparse-View CT Reconstruction using Recurrent Stacked Back Projection

Charles A. Bouman, Gregery T. Buzzard, Wenrui Li

arxiv:2112.04998 v1 · 2021-12-09 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DALXJAHLDXRJSK5CVWSOGXBZ75}

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	2026-07-05T03:39:28.179566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18177480eb1de2992ba2ada4e35c39ff7916de72be0aecb8d45309566a610c48

Aliases

arxiv: 2112.04998 · arxiv_version: 2112.04998v1 · doi: 10.48550/arxiv.2112.04998 · pith_short_12: DALXJAHLDXRJ · pith_short_16: DALXJAHLDXRJSK5C · pith_short_8: DALXJAHL

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/DALXJAHLDXRJSK5CVWSOGXBZ75 \
  | 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: 18177480eb1de2992ba2ada4e35c39ff7916de72be0aecb8d45309566a610c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaf3ad3875471b2efb7f77b68d5f8c5913173e86e7ca20da8c73d460b3f1a676",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-12-09T15:44:35Z",
    "title_canon_sha256": "09250a15d634eb5817833f0236798877dcca6733623698a5c2aa3d8b52874e35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04998",
    "kind": "arxiv",
    "version": 1
  }
}