Pith Number

pith:QTBVKX7C

pith:2016:QTBVKX7CPSUW4TXZF45ARK7FV3

not attested not anchored not stored refs pending

Upscaledb: Efficient Integer-Key Compression in a Key-Value Store using SIMD Instructions

Christoph Rupp, Daniel Lemire

arxiv:1611.05428 v2 · 2016-11-16 · 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{QTBVKX7CPSUW4TXZF45ARK7FV3}

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	2026-05-18T00:52:44.006629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c3555fe27ca96e4ef92f3a08abe5aec718074fb2fe451664f522578a8083e6

Aliases

arxiv: 1611.05428 · arxiv_version: 1611.05428v2 · doi: 10.48550/arxiv.1611.05428 · pith_short_12: QTBVKX7CPSUW · pith_short_16: QTBVKX7CPSUW4TXZ · pith_short_8: QTBVKX7C

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/QTBVKX7CPSUW4TXZF45ARK7FV3 \
  | 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: 84c3555fe27ca96e4ef92f3a08abe5aec718074fb2fe451664f522578a8083e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a26f172cbc3c84c7d1335760087431879d4260202c94fb938132f52bc247ad23",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2016-11-16T20:17:07Z",
    "title_canon_sha256": "e3d01df2a5d108ba28b7bf7511e59f5c19a722c713f926e135825353d40a95bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05428",
    "kind": "arxiv",
    "version": 2
  }
}