Pith Number

pith:FW3IY5T3

pith:2016:FW3IY5T3EIAUPTIEKASO5UESQ3

not attested not anchored not stored refs pending

Spatial contrasting for deep unsupervised learning

Elad Hoffer, Itay Hubara, Nir Ailon

arxiv:1611.06996 v1 · 2016-11-21 · stat.ML · 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{FW3IY5T3EIAUPTIEKASO5UESQ3}

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	2026-05-18T00:57:25.045353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db68c767b220147cd045024eed09286eb7ec6050d9f1ab90c04af857e08676b

Aliases

arxiv: 1611.06996 · arxiv_version: 1611.06996v1 · doi: 10.48550/arxiv.1611.06996 · pith_short_12: FW3IY5T3EIAU · pith_short_16: FW3IY5T3EIAUPTIE · pith_short_8: FW3IY5T3

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/FW3IY5T3EIAUPTIEKASO5UESQ3 \
  | 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: 2db68c767b220147cd045024eed09286eb7ec6050d9f1ab90c04af857e08676b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "541b16a8463c316b32e712a346215d8cb18db89c9b3f21b99493d4021352bb28",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-11-21T20:24:58Z",
    "title_canon_sha256": "acd2071250664519d3d8dc16e8e3ee84eaaf3769b6c973f4e04ae36c7ead94d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06996",
    "kind": "arxiv",
    "version": 1
  }
}