Pith Number

pith:CA6W3COE

pith:2018:CA6W3COEZ6BSP2N5V5NKDRGQGD

not attested not anchored not stored refs pending

Classification of volcanic ash particles using a convolutional neural network and probability

Daigo Shoji, Hideitsu Hino, Rina Noguchi, Shizuka Otsuki

arxiv:1805.12353 v1 · 2018-05-31 · physics.geo-ph · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CA6W3COEZ6BSP2N5V5NKDRGQGD}

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	2026-05-18T00:14:30.512145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103d6d89c4cf8327e9bdaf5aa1c4d030f74767ddc7683da7e20973c392b7451b

Aliases

arxiv: 1805.12353 · arxiv_version: 1805.12353v1 · doi: 10.48550/arxiv.1805.12353 · pith_short_12: CA6W3COEZ6BS · pith_short_16: CA6W3COEZ6BSP2N5 · pith_short_8: CA6W3COE

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/CA6W3COEZ6BSP2N5V5NKDRGQGD \
  | 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: 103d6d89c4cf8327e9bdaf5aa1c4d030f74767ddc7683da7e20973c392b7451b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c1a2e1408361c8326b4cc1e98cd68ebc7a32c2486e9bdb951e75e4165630ff6",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2018-05-31T07:30:48Z",
    "title_canon_sha256": "fe5f909ee00749678d6df316663ae035a4d4acc2bfff2b681154b8c86bf8546e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.12353",
    "kind": "arxiv",
    "version": 1
  }
}