Pith Number

pith:WELVIHCJ

pith:2019:WELVIHCJM6EDUZXRC6DYH36GIT

not attested not anchored not stored refs pending

The TagRec Framework as a Toolkit for the Development of Tag-Based Recommender Systems

Dominik Kowald, Elisabeth Lex, Simone Kopeinik

arxiv:1901.00306 v1 · 2019-01-02 · 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	2026-05-17T23:57:06.402896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b117541c4967883a66f1178783efc644cd282f9784a70c2bf0eb6e65d3cdbb08

Aliases

arxiv: 1901.00306 · arxiv_version: 1901.00306v1 · doi: 10.48550/arxiv.1901.00306 · pith_short_12: WELVIHCJM6ED · pith_short_16: WELVIHCJM6EDUZXR · pith_short_8: WELVIHCJ

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/WELVIHCJM6EDUZXRC6DYH36GIT \
  | 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: b117541c4967883a66f1178783efc644cd282f9784a70c2bf0eb6e65d3cdbb08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3958c2a16d193779089c0f33199775f9f0e6b536f393282e62996a3caca41279",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-01-02T09:32:27Z",
    "title_canon_sha256": "77adfaad3a25c0aebb1a1035bc5772cdb39f52f8c82a3d4eafcaf8e97730f966"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00306",
    "kind": "arxiv",
    "version": 1
  }
}