Pith Number

pith:DAPNIF4T

pith:2020:DAPNIF4TGLK7C7TNE6NELN7B4J

not attested not anchored not stored refs pending

Single Unit Status in Deep Convolutional Neural Network Codes for Face Identification: Sparseness Redefined

Alice J. O'Toole, Carlos D. Castillo, Connor J. Parde, Matthew Q. Hill, Prithviraj Dhar, Y. Ivette Col\'on

arxiv:2002.06274 v2 · 2020-02-14 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAPNIF4TGLK7C7TNE6NELN7B4J}

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	2026-07-05T00:44:42.791506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181ed4179332d5f17e6d279a45b7e1e2663af2cc49aa32827aa2e3cc7a74680d

Aliases

arxiv: 2002.06274 · arxiv_version: 2002.06274v2 · doi: 10.48550/arxiv.2002.06274 · pith_short_12: DAPNIF4TGLK7 · pith_short_16: DAPNIF4TGLK7C7TN · pith_short_8: DAPNIF4T

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/DAPNIF4TGLK7C7TNE6NELN7B4J \
  | 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: 181ed4179332d5f17e6d279a45b7e1e2663af2cc49aa32827aa2e3cc7a74680d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f75f59f9bf87953362b137361680566b133e6473002e2c479e61c3722aaf070c",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-02-14T22:42:02Z",
    "title_canon_sha256": "52dd092737177199437e73f4ee9b0c3e91ef95daed9f4de84bf92033b6a84def"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.06274",
    "kind": "arxiv",
    "version": 2
  }
}