Pith Number

pith:7RT2ANDV

pith:2021:7RT2ANDVNYRDKK6P36LEDZF2GR

not attested not anchored not stored refs pending

Interest-oriented Universal User Representation via Contrastive Learning

Bei Yang, Hong Liu, Huan Xu, Jie Gu, Qinghui Sun, Renjun Xu, Shangde Gao, Xiaoxiao Xu

arxiv:2109.08865 v2 · 2021-09-18 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RT2ANDVNYRDKK6P36LEDZF2GR}

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	2026-07-05T03:31:14.869701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc67a034756e22352bcfdf9641e4ba34442371b5b335f32971dd9c3c11ccb056

Aliases

arxiv: 2109.08865 · arxiv_version: 2109.08865v2 · doi: 10.48550/arxiv.2109.08865 · pith_short_12: 7RT2ANDVNYRD · pith_short_16: 7RT2ANDVNYRDKK6P · pith_short_8: 7RT2ANDV

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/7RT2ANDVNYRDKK6P36LEDZF2GR \
  | 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: fc67a034756e22352bcfdf9641e4ba34442371b5b335f32971dd9c3c11ccb056

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24cfd86202f0c4b89d99deceb7831083ae99586d841ba64d10dc349d9b27fb64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-18T07:42:00Z",
    "title_canon_sha256": "9b38db6343d77e58b2bb251b9859be9d1ebc08a445bc1c55f3bdbe0159c90d4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08865",
    "kind": "arxiv",
    "version": 2
  }
}