Pith Number

pith:4XVHJUXS

pith:2021:4XVHJUXS26LJPZ423FGQYGEKV5

not attested not anchored not stored refs pending

Memory Augmented Multi-Instance Contrastive Predictive Coding for Sequential Recommendation

Hongzhi Yin, Ruihong Qiu, Zi Huang

arxiv:2109.00368 v3 · 2021-09-01 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XVHJUXS26LJPZ423FGQYGEKV5}

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	2026-07-05T03:13:32.587106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5ea74d2f2d79697e79ad94d0c188aaf78d1240db951d79f2afa186d612def43

Aliases

arxiv: 2109.00368 · arxiv_version: 2109.00368v3 · doi: 10.48550/arxiv.2109.00368 · pith_short_12: 4XVHJUXS26LJ · pith_short_16: 4XVHJUXS26LJPZ42 · pith_short_8: 4XVHJUXS

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/4XVHJUXS26LJPZ423FGQYGEKV5 \
  | 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: e5ea74d2f2d79697e79ad94d0c188aaf78d1240db951d79f2afa186d612def43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2800e41924610c77367a5653c1cedf8274428fc518ae9b9d665babdcb604e2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-09-01T13:08:18Z",
    "title_canon_sha256": "8033626a0c38a47bc647f150b27e095a3a8f17774a556b1ce8e26d26d688c618"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00368",
    "kind": "arxiv",
    "version": 3
  }
}