Pith Number

pith:W5DUGWF4

pith:2018:W5DUGWF4MIIXW2OQRWZ2U3GJN4

not attested not anchored not stored refs pending

Semantic projection: recovering human knowledge of multiple, distinct object features from word embeddings

Evelina Fedorenko, Francisco Pereira, Gabriel Grand, Idan Asher Blank

arxiv:1802.01241 v2 · 2018-02-05 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5DUGWF4MIIXW2OQRWZ2U3GJN4}

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	2026-05-18T00:21:56.604124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7474358bc62117b69d08db3aa6cc96f062cb1188ec07b41702f029dfcd6510a

Aliases

arxiv: 1802.01241 · arxiv_version: 1802.01241v2 · doi: 10.48550/arxiv.1802.01241 · pith_short_12: W5DUGWF4MIIX · pith_short_16: W5DUGWF4MIIXW2OQ · pith_short_8: W5DUGWF4

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/W5DUGWF4MIIXW2OQRWZ2U3GJN4 \
  | 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: b7474358bc62117b69d08db3aa6cc96f062cb1188ec07b41702f029dfcd6510a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a36feee7c0f308d1212309d6f9a9cd465be3f725f748d74b182550a57378ef42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-02-05T02:42:40Z",
    "title_canon_sha256": "eb5c0c6bd4cfe4bfbdc6eafd6218b08e1031e43dab963100cb87d7df0af67ee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01241",
    "kind": "arxiv",
    "version": 2
  }
}