Pith Number

pith:NJB4PAHM

pith:2013:NJB4PAHMB5YXXAZSTRVZH6ULHL

not attested not anchored not stored refs pending

Sparse similarity-preserving hashing

Alex M. Bronstein, Guillermo Sapiro, Jonathan Masci, Michael M. Bronstein, Pablo Sprechmann

arxiv:1312.5479 v3 · 2013-12-19 · cs.CV · 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{NJB4PAHMB5YXXAZSTRVZH6ULHL}

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	2026-05-18T02:58:56.443955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a43c780ec0f717b83329c6b93fa8b3af47dee48d363f69c12d4d28e7e333c66

Aliases

arxiv: 1312.5479 · arxiv_version: 1312.5479v3 · doi: 10.48550/arxiv.1312.5479 · pith_short_12: NJB4PAHMB5YX · pith_short_16: NJB4PAHMB5YXXAZS · pith_short_8: NJB4PAHM

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/NJB4PAHMB5YXXAZSTRVZH6ULHL \
  | 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: 6a43c780ec0f717b83329c6b93fa8b3af47dee48d363f69c12d4d28e7e333c66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5e8ce01cf47363494f76d415d7b9692dbd2e5ea161e93e33d75100cc8c29c9d",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-12-19T11:04:40Z",
    "title_canon_sha256": "ad62c78a90ef28b86081cad46f4b4ea46222315f0da42d2408e33e0d88a01706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5479",
    "kind": "arxiv",
    "version": 3
  }
}