Pith Number

pith:GOH3B6VG

pith:2020:GOH3B6VGKNCHQRQ6YJAVJKPBDO

not attested not anchored not stored refs pending

The item selection problem for user cold-start recommendation

James Cheng, Jie Liu, Xiao Yan, Yitong Meng

arxiv:2010.14013 v1 · 2020-10-27 · cs.IR · cs.LG · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GOH3B6VGKNCHQRQ6YJAVJKPBDO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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	2026-07-05T01:46:30.255857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

338fb0faa6534478461ec24154a9e11bbbc24d2af3e6e90f000187dd6313410a

Aliases

arxiv: 2010.14013 · arxiv_version: 2010.14013v1 · doi: 10.48550/arxiv.2010.14013 · pith_short_12: GOH3B6VGKNCH · pith_short_16: GOH3B6VGKNCHQRQ6 · pith_short_8: GOH3B6VG

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/GOH3B6VGKNCHQRQ6YJAVJKPBDO \
  | 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: 338fb0faa6534478461ec24154a9e11bbbc24d2af3e6e90f000187dd6313410a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "811eb551bd9111b9f28b55793d566c78efef41dde9c3078c693fc9bd7fa8f420",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-10-27T02:48:26Z",
    "title_canon_sha256": "f8858e598442669ce0f672c2c5216b803002ce66f6cd4e3b41784ff5a9adf9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.14013",
    "kind": "arxiv",
    "version": 1
  }
}