Pith Number

pith:O5NVYD6D

pith:2019:O5NVYD6DKD7ZQVVXHIMBE6QPCQ

not attested not anchored not stored refs pending

On matrices and $K$-relations

Jan Van den Bussche, Marc Gyssens, Robert Brijder

arxiv:1904.03934 v1 · 2019-04-08 · cs.DB · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5NVYD6DKD7ZQVVXHIMBE6QPCQ}

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	2026-05-17T23:49:07.640155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

775b5c0fc350ff9856b73a18127a0f140e6662fad53f0d80070460f11964b39f

Aliases

arxiv: 1904.03934 · arxiv_version: 1904.03934v1 · doi: 10.48550/arxiv.1904.03934 · pith_short_12: O5NVYD6DKD7Z · pith_short_16: O5NVYD6DKD7ZQVVX · pith_short_8: O5NVYD6D

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/O5NVYD6DKD7ZQVVXHIMBE6QPCQ \
  | 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: 775b5c0fc350ff9856b73a18127a0f140e6662fad53f0d80070460f11964b39f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00097a10b130b697e58ea25e3d3e6d4c32c4574754b6cd013d779a6e650cdbd5",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-04-08T10:26:35Z",
    "title_canon_sha256": "536f45873944c25e5c27142bffe6903686da35f8c79838fdabc385647d29e2bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03934",
    "kind": "arxiv",
    "version": 1
  }
}