Pith Number

pith:A6VRX4VP

pith:2017:A6VRX4VPFC3E6O2OWLRWWZCEHK

not attested not anchored not stored refs pending

Product recognition in store shelves as a sub-graph isomorphism problem

Alessio Tonioni, Luigi Di Stefano

arxiv:1707.08378 v2 · 2017-07-26 · 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{A6VRX4VPFC3E6O2OWLRWWZCEHK}

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	2026-05-18T00:34:46.942959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07ab1bf2af28b64f3b4eb2e36b64443abcf057dd159747782a1fc176ea21c8fc

Aliases

arxiv: 1707.08378 · arxiv_version: 1707.08378v2 · doi: 10.48550/arxiv.1707.08378 · pith_short_12: A6VRX4VPFC3E · pith_short_16: A6VRX4VPFC3E6O2O · pith_short_8: A6VRX4VP

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/A6VRX4VPFC3E6O2OWLRWWZCEHK \
  | 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: 07ab1bf2af28b64f3b4eb2e36b64443abcf057dd159747782a1fc176ea21c8fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7807903cf4025364f086305267d1059d5689607fff0d078447d218cec6a6686",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-07-26T11:20:58Z",
    "title_canon_sha256": "0c71d75429af73b1e323d4415c9374f41f6cd163943ddc3be525645eba802f8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08378",
    "kind": "arxiv",
    "version": 2
  }
}