Pith Number

pith:TFIBTHUL

pith:2017:TFIBTHULMUYEOVQ3FKK3IGKRZP

not attested not anchored not stored refs pending

Hierarchical Re-estimation of Topic Models for Measuring Topical Diversity

Hosein Azarbonyad, Jaap Kamps, Maarten de Rijke, Maarten Marx, Mostafa Dehghani, Tom Kenter

arxiv:1701.04273 v1 · 2017-01-16 · cs.IR

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	2026-05-18T00:52:47.238688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9950199e8b653047561b2a95b41951cbdc299f1ea1fef1f2a89b242295cd1f06

Aliases

arxiv: 1701.04273 · arxiv_version: 1701.04273v1 · doi: 10.48550/arxiv.1701.04273 · pith_short_12: TFIBTHULMUYE · pith_short_16: TFIBTHULMUYEOVQ3 · pith_short_8: TFIBTHUL

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/TFIBTHULMUYEOVQ3FKK3IGKRZP \
  | 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: 9950199e8b653047561b2a95b41951cbdc299f1ea1fef1f2a89b242295cd1f06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c189dc7a6b5c7888666a63212c4f880289a7c80ae862299c3f7ca39c884defa9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-01-16T12:59:47Z",
    "title_canon_sha256": "b846ec8fd9b6e712088a01d677802f28017ed21ffc43f867470315ef89ab60a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04273",
    "kind": "arxiv",
    "version": 1
  }
}