Pith Number

pith:NA4ZGSMA

pith:2021:NA4ZGSMABFOWPBK6F6SNN3QWDJ

not attested not anchored not stored refs pending

Deep Neural Networks for Automatic Grain-matrix Segmentation in Plane and Cross-polarized Sandstone Photomicrographs

Ajoy Mondal, Kuntal Ghosh, Rajdeep Das, Tapan Chakraborty

arxiv:2111.07102 v1 · 2021-11-13 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NA4ZGSMABFOWPBK6F6SNN3QWDJ}

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	2026-07-05T03:31:35.992466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6839934980095d67855e2fa4d6ee161a6daf165962ebf3eda7166ff15e778540

Aliases

arxiv: 2111.07102 · arxiv_version: 2111.07102v1 · doi: 10.48550/arxiv.2111.07102 · pith_short_12: NA4ZGSMABFOW · pith_short_16: NA4ZGSMABFOWPBK6 · pith_short_8: NA4ZGSMA

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/NA4ZGSMABFOWPBK6F6SNN3QWDJ \
  | 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: 6839934980095d67855e2fa4d6ee161a6daf165962ebf3eda7166ff15e778540

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f777f0cb7338eae0e17c47a627e8c05d6f19b95b606bd0a52f358b104df5c84",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-13T12:04:06Z",
    "title_canon_sha256": "a4addfcd016c585355678a601a4460898da251403ec2bd8755c4e7e7af3e602c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.07102",
    "kind": "arxiv",
    "version": 1
  }
}