Pith Number

pith:R4J6ZPUO

pith:2021:R4J6ZPUOBNFMIW56C657JZ6J43

not attested not anchored not stored refs pending

Updatable Learned Index with Precise Positions

Chunxiao Xing, Jiacheng Wu, Jin Wang, Shimin Chen, Yong Zhang, Yu Chen

arxiv:2104.05520 v2 · 2021-04-12 · 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{R4J6ZPUOBNFMIW56C657JZ6J43}

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	2026-07-05T02:31:24.226851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f13ecbe8e0b4ac45bbe17bbf4e7c9e6df8e139c7d9a5a86d9c839cb2f4637cb

Aliases

arxiv: 2104.05520 · arxiv_version: 2104.05520v2 · doi: 10.48550/arxiv.2104.05520 · pith_short_12: R4J6ZPUOBNFM · pith_short_16: R4J6ZPUOBNFMIW56 · pith_short_8: R4J6ZPUO

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/R4J6ZPUOBNFMIW56C657JZ6J43 \
  | 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: 8f13ecbe8e0b4ac45bbe17bbf4e7c9e6df8e139c7d9a5a86d9c839cb2f4637cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e21aa23d3f737ab87be0c95f156a2c510e9a77168c225fddaab82d30175f56a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2021-04-12T14:46:07Z",
    "title_canon_sha256": "0e3bd848da90e09be8573eed8c0e948549d920782417de8dfed29d5c773a77e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05520",
    "kind": "arxiv",
    "version": 2
  }
}