Pith Number

pith:7IZPZDJE

pith:2013:7IZPZDJE3ZMRB6SVCQWDCQZKMD

not attested not anchored not stored refs pending

A Bag of Visual Words Approach for Symbols-Based Coarse-Grained Ancient Coin Classification

Hafeez Anwar, Martin Kampel, Sebastian Zambanini

arxiv:1304.6192 v1 · 2013-04-23 · 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{7IZPZDJE3ZMRB6SVCQWDCQZKMD}

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.

Cited by

1 paper in Pith

Deep Ancient Roman Republican Coin Classification via Feature Fusion and Attention

Receipt and verification

First computed	2026-05-18T03:27:22.158059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa32fc8d24de5910fa55142c31432a60eb49d2dc7c64abfee04a4d248993b3a7

Aliases

arxiv: 1304.6192 · arxiv_version: 1304.6192v1 · doi: 10.48550/arxiv.1304.6192 · pith_short_12: 7IZPZDJE3ZMR · pith_short_16: 7IZPZDJE3ZMRB6SV · pith_short_8: 7IZPZDJE

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/7IZPZDJE3ZMRB6SVCQWDCQZKMD \
  | 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: fa32fc8d24de5910fa55142c31432a60eb49d2dc7c64abfee04a4d248993b3a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d948c5d762d7bebf9642b310ae6872565febd2e89528be020122c76ae92595d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-04-23T07:46:11Z",
    "title_canon_sha256": "5006e2fcf448972f1da8594056b10476afd7716c8f833252a14f1cf229055cd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6192",
    "kind": "arxiv",
    "version": 1
  }
}