Pith Number

pith:4PEHOPLJ

pith:2012:4PEHOPLJ6BNYXQUFYMGGVOSEOD

not attested not anchored not stored refs pending

On morphological hierarchical representations for image processing and spatial data clustering

Laurent Najman (LIGM), Pierre Soille (IPSC)

arxiv:1209.3925 v1 · 2012-09-18 · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4PEHOPLJ6BNYXQUFYMGGVOSEOD}

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	2026-05-18T03:45:22.232146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3c8773d69f05b8bc285c30c6aba4470e67cc6a09ec0e402b45cdc8fbcdca602

Aliases

arxiv: 1209.3925 · arxiv_version: 1209.3925v1 · doi: 10.48550/arxiv.1209.3925 · pith_short_12: 4PEHOPLJ6BNY · pith_short_16: 4PEHOPLJ6BNYXQUF · pith_short_8: 4PEHOPLJ

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/4PEHOPLJ6BNYXQUFYMGGVOSEOD \
  | 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: e3c8773d69f05b8bc285c30c6aba4470e67cc6a09ec0e402b45cdc8fbcdca602

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2b41d379b843b6e72b4932ee6bda0ed436598d807f84201adfb018d5352f388",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-09-18T12:33:33Z",
    "title_canon_sha256": "ab3101009d6e8b41775a42981b3be6d68cbd87f1c3f8f77a7c5e1d36235c45cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3925",
    "kind": "arxiv",
    "version": 1
  }
}