Pith Number

pith:FDKRP7II

pith:2015:FDKRP7IIC2PGVNNQYHC6MNUUWN

not attested not anchored not stored refs pending

Direct high-order edge-preserving regularization for tomographic image reconstruction

Daniil Kazantsev, Evgueni Ovtchinnikov, Peter D. Lee, Philip J. Withers, William R. B. Lionheart

arxiv:1509.04706 v1 · 2015-09-15 · cs.CV · cs.MS · 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{FDKRP7IIC2PGVNNQYHC6MNUUWN}

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	2026-05-18T01:32:51.899434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28d517fd08169e6ab5b0c1c5e63694b36746ed531a18f7b308aa05e51fe144bb

Aliases

arxiv: 1509.04706 · arxiv_version: 1509.04706v1 · doi: 10.48550/arxiv.1509.04706 · pith_short_12: FDKRP7IIC2PG · pith_short_16: FDKRP7IIC2PGVNNQ · pith_short_8: FDKRP7II

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/FDKRP7IIC2PGVNNQYHC6MNUUWN \
  | 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: 28d517fd08169e6ab5b0c1c5e63694b36746ed531a18f7b308aa05e51fe144bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74c535d138ed6b247870ba3c3a636bccf13e4425766c3a5fd7b6d5977342a851",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-09-15T18:23:56Z",
    "title_canon_sha256": "376a68b0c7d3d24d2dfe67d036d6d545cce66cd6f3c75ceb69f2cc9b4e1885e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04706",
    "kind": "arxiv",
    "version": 1
  }
}