Pith Number

pith:4B44Y5PJ

pith:2016:4B44Y5PJNUPOS64TTHY5IKN5PL

not attested not anchored not stored refs pending

Topical Generalization for Presentation of User Profiles

Alex Olieman, Emil de Valk, Gleb Satyukov, Jaap Kamps

arxiv:1608.07952 v3 · 2016-08-29 · 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	2026-05-18T00:57:37.506086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e079cc75e96d1ee97b9399f1d429bd7ac93835866d15e4bb02e108cba04bc9a2

Aliases

arxiv: 1608.07952 · arxiv_version: 1608.07952v3 · doi: 10.48550/arxiv.1608.07952 · pith_short_12: 4B44Y5PJNUPO · pith_short_16: 4B44Y5PJNUPOS64T · pith_short_8: 4B44Y5PJ

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/4B44Y5PJNUPOS64TTHY5IKN5PL \
  | 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: e079cc75e96d1ee97b9399f1d429bd7ac93835866d15e4bb02e108cba04bc9a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a18bd863e314bc8908a1e13ded518293cf912fe7bef942bc0fa923809f960177",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2016-08-29T08:47:12Z",
    "title_canon_sha256": "b320063f99c1e4c108a40f9c1e6e2ca50b44e5ad7b26ba936ead3f63c07c5e13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07952",
    "kind": "arxiv",
    "version": 3
  }
}