Pith Number

pith:A2P7J3SJ

pith:2015:A2P7J3SJP45XCUQRV4MU6SLHH2

not attested not anchored not stored refs pending

A Tensor-Based Dictionary Learning Approach to Tomographic Image Reconstruction

Misha E. Kilmer, Per Christian Hansen, Sara Soltani

arxiv:1506.04954 v1 · 2015-06-08 · cs.CV · cs.NA · 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{A2P7J3SJP45XCUQRV4MU6SLHH2}

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	2026-05-18T01:48:05.394117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

069ff4ee497f3b715211af194f49673e87175bbed61d783c23eaa00caa9c8163

Aliases

arxiv: 1506.04954 · arxiv_version: 1506.04954v1 · doi: 10.48550/arxiv.1506.04954 · pith_short_12: A2P7J3SJP45X · pith_short_16: A2P7J3SJP45XCUQR · pith_short_8: A2P7J3SJ

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/A2P7J3SJP45XCUQRV4MU6SLHH2 \
  | 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: 069ff4ee497f3b715211af194f49673e87175bbed61d783c23eaa00caa9c8163

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34d965405d782dfe5cb2130f74574356e513ef78e126af0b8cf507f70e170636",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-06-08T08:55:28Z",
    "title_canon_sha256": "6d68aa3bde19b88bcb09c86ecb15981bda730f1028bec9c5342cd061dd2d71a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04954",
    "kind": "arxiv",
    "version": 1
  }
}