Pith Number

pith:FX27BI44

pith:2016:FX27BI44DLS6OSOWFES67XJGR7

not attested not anchored not stored refs pending

Lifted Relational Algebra with Recursion and Connections to Modal Logic

Eugenia Ternovska

arxiv:1612.09251 v1 · 2016-12-29 · cs.LO · cs.AI · 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{FX27BI44DLS6OSOWFES67XJGR7}

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	2026-05-18T00:53:46.162653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2df5f0a39c1ae5e749d62925efdd268ff3ae3d892863fec0fa80979eea23a4b4

Aliases

arxiv: 1612.09251 · arxiv_version: 1612.09251v1 · doi: 10.48550/arxiv.1612.09251 · pith_short_12: FX27BI44DLS6 · pith_short_16: FX27BI44DLS6OSOW · pith_short_8: FX27BI44

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/FX27BI44DLS6OSOWFES67XJGR7 \
  | 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: 2df5f0a39c1ae5e749d62925efdd268ff3ae3d892863fec0fa80979eea23a4b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e17fc0cd3659d98daace8b73f356fe67d8d13b2483b6efceafd6a3ddaf7bccf",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-12-29T19:17:31Z",
    "title_canon_sha256": "d2578d5d4f02e4ee2629f4aa0e7678b267be35d3671dcc193c8e1d2dc56a2a67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.09251",
    "kind": "arxiv",
    "version": 1
  }
}