Pith Number

pith:QJLZTI6Q

pith:2021:QJLZTI6QILKYH7L7EAJQT7UHH2

not attested not anchored not stored refs pending

APEX: A High-Performance Learned Index on Persistent Memory

Baotong Lu, Eric Lo, Jialin Ding, Tianzheng Wang, Umar Farooq Minhas

arxiv:2105.00683 v3 · 2021-05-03 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJLZTI6QILKYH7L7EAJQT7UHH2}

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.

Cited by

1 paper in Pith

A Distributed Learned Hash Table

Receipt and verification

First computed	2026-07-05T03:37:42.532477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

825799a3d042d583fd7f201309fe873eb31a6ab0ba1175239b21160bd064ce7c

Aliases

arxiv: 2105.00683 · arxiv_version: 2105.00683v3 · doi: 10.48550/arxiv.2105.00683 · pith_short_12: QJLZTI6QILKY · pith_short_16: QJLZTI6QILKYH7L7 · pith_short_8: QJLZTI6Q

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/QJLZTI6QILKYH7L7EAJQT7UHH2 \
  | 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: 825799a3d042d583fd7f201309fe873eb31a6ab0ba1175239b21160bd064ce7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b51118d083dde0e87d44151977b8a74b39c742ff0668bb26ac73eed0a9b158f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2021-05-03T08:36:44Z",
    "title_canon_sha256": "51bc6db806c599c0ccdeccc39d497936f261126e77fb084db871e4b721def910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.00683",
    "kind": "arxiv",
    "version": 3
  }
}