Pith Number

pith:JFTLOFWU

pith:2015:JFTLOFWUU76W52N3QYLVTAFFUS

not attested not anchored not stored refs pending

The Continuous Cold Start Problem in e-Commerce Recommender Systems

Jaap Kamps, Julia Kiseleva, Lucas Bernardi, Melanie JI M\"uller

arxiv:1508.01177 v1 · 2015-08-05 · 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	2026-05-18T01:35:43.906829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4966b716d4a7fd6ee9bb86175980a5a4a6c4d002a350adb0b5d6e6933311fa9c

Aliases

arxiv: 1508.01177 · arxiv_version: 1508.01177v1 · doi: 10.48550/arxiv.1508.01177 · pith_short_12: JFTLOFWUU76W · pith_short_16: JFTLOFWUU76W52N3 · pith_short_8: JFTLOFWU

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/JFTLOFWUU76W52N3QYLVTAFFUS \
  | 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: 4966b716d4a7fd6ee9bb86175980a5a4a6c4d002a350adb0b5d6e6933311fa9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48592a93ff7b91d91cdb8ce33340edd15704d49b6d7f6068c38a8de4b315d474",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-08-05T19:03:49Z",
    "title_canon_sha256": "598950f9aeb58188e7d31010a7ed7dcb7a082f56583d609a29e9dfdd55df174c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01177",
    "kind": "arxiv",
    "version": 1
  }
}