Pith Number

pith:SAOA24JK

pith:2017:SAOA24JK3EYDOCZQGKX7A4YHYN

not attested not anchored not stored refs pending

Learning Concept Embeddings for Efficient Bag-of-Concepts Densification

Walid Shalaby, Wlodek Zadrozny

arxiv:1702.03342 v2 · 2017-02-10 · cs.CL

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

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	2026-05-17T23:57:54.376413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901c0d712ad930370b3032aff07307c342a889fd24ad99181c2fa29b1a7dfa4f

Aliases

arxiv: 1702.03342 · arxiv_version: 1702.03342v2 · doi: 10.48550/arxiv.1702.03342 · pith_short_12: SAOA24JK3EYD · pith_short_16: SAOA24JK3EYDOCZQ · pith_short_8: SAOA24JK

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/SAOA24JK3EYDOCZQGKX7A4YHYN \
  | 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: 901c0d712ad930370b3032aff07307c342a889fd24ad99181c2fa29b1a7dfa4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e437f20ce7f32447b08f8cabdd2fdce68852087bda742ffa4a07db558c7d4c86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-02-10T22:44:59Z",
    "title_canon_sha256": "e3d2cb783bd07d0cf84b6cc87dba24c10bdc09796a1e8bf5fd4a4409cf559ba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03342",
    "kind": "arxiv",
    "version": 2
  }
}