Pith Number

pith:H32VC2TA

pith:2018:H32VC2TAHX5LFPM4HTMRJY6DGS

not attested not anchored not stored refs pending

Challenging Images For Minds and Machines

Amir Rosenfeld, John K. Tsotsos

arxiv:1802.04834 v1 · 2018-02-13 · cs.LG · cs.AI · 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{H32VC2TAHX5LFPM4HTMRJY6DGS}

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	2026-05-18T00:23:22.499527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef5516a603dfab2bd9c3cd914e3c334a2092c49f253f5fbb9053690f9a9cb45

Aliases

arxiv: 1802.04834 · arxiv_version: 1802.04834v1 · doi: 10.48550/arxiv.1802.04834 · pith_short_12: H32VC2TAHX5L · pith_short_16: H32VC2TAHX5LFPM4 · pith_short_8: H32VC2TA

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/H32VC2TAHX5LFPM4HTMRJY6DGS \
  | 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: 3ef5516a603dfab2bd9c3cd914e3c334a2092c49f253f5fbb9053690f9a9cb45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61b311b184fb412858b9d9c0d242c63bbccf658a312c6696925fddea1be846ee",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-02-13T19:50:41Z",
    "title_canon_sha256": "8c086a7b7f094b7832a70c1e8bc43fda8eb6a6fbefcd974dcfc57ba290b571cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04834",
    "kind": "arxiv",
    "version": 1
  }
}