Pith Number

pith:PFCMC7PB

pith:2018:PFCMC7PBZFEW35LWLPSHG5BYV5

not attested not anchored not stored refs pending

Porosity Amount Estimation in Stones Based on Combination of One Dimensional Local Binary Patterns and Image Normalization Technique

Shervan Fekri-Ershad

arxiv:1810.05922 v1 · 2018-10-13 · 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{PFCMC7PBZFEW35LWLPSHG5BYV5}

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	2026-05-18T00:03:21.906900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7944c17de1c9496df5765be4737438af40ca182760245153a706720ca086d8b2

Aliases

arxiv: 1810.05922 · arxiv_version: 1810.05922v1 · doi: 10.48550/arxiv.1810.05922 · pith_short_12: PFCMC7PBZFEW · pith_short_16: PFCMC7PBZFEW35LW · pith_short_8: PFCMC7PB

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/PFCMC7PBZFEW35LWLPSHG5BYV5 \
  | 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: 7944c17de1c9496df5765be4737438af40ca182760245153a706720ca086d8b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a3634707fc41404d9de1b16f107944d2a0ebecfad9ce548e67bdeb2d0b9d81",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-10-13T20:14:00Z",
    "title_canon_sha256": "38364586280a7c0048afee687ba9201b71ddcaf3f2fa8a35d46af7e8d0dffed3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05922",
    "kind": "arxiv",
    "version": 1
  }
}