Pith Number

pith:2J5R6AMJ

pith:2023:2J5R6AMJSAV6XQGJNZSFBE3BYQ

not attested not anchored not stored refs pending

Preservation theorems for Tarski's relation algebra

Balder ten Cate, Bart Bogaerts, Brett McLean, Jan Van den Bussche

arxiv:2305.04656 v5 · 2023-05-08 · 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{2J5R6AMJSAV6XQGJNZSFBE3BYQ}

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

Algebras for Deterministic Computation Are Inherently Incomplete

Receipt and verification

First computed	2026-07-05T09:05:09.336094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d27b1f0189902bebc0c96e64509361c423b1ba72061de2d3ac3780e846d2eda6

Aliases

arxiv: 2305.04656 · arxiv_version: 2305.04656v5 · doi: 10.48550/arxiv.2305.04656 · pith_short_12: 2J5R6AMJSAV6 · pith_short_16: 2J5R6AMJSAV6XQGJ · pith_short_8: 2J5R6AMJ

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/2J5R6AMJSAV6XQGJNZSFBE3BYQ \
  | 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: d27b1f0189902bebc0c96e64509361c423b1ba72061de2d3ac3780e846d2eda6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acab850de5a9dc6dabffb613633b2ec6e7f5c60bcf6a9c1f3429fc76c7ffd1aa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2023-05-08T12:18:03Z",
    "title_canon_sha256": "75d506a499c85f0fda765ca4ab982204791ad92dc2364f299f2c9fba1025cc46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.04656",
    "kind": "arxiv",
    "version": 5
  }
}