Pith Number

pith:UGZHVHJL

pith:2013:UGZHVHJLOLKUKMCI7EVBJP4YEB

not attested not anchored not stored refs pending

Atom-canonicity, relativized representations and omitting types for clique guarded semantics and guarded logics

Tarek Sayed Ahmed

arxiv:1308.6165 v1 · 2013-08-27 · math.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{UGZHVHJLOLKUKMCI7EVBJP4YEB}

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	2026-05-18T03:14:48.908594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b27a9d2b72d5453048f92a14bf982053cd3a9e2584a3b9be300523a461dda7

Aliases

arxiv: 1308.6165 · arxiv_version: 1308.6165v1 · doi: 10.48550/arxiv.1308.6165 · pith_short_12: UGZHVHJLOLKU · pith_short_16: UGZHVHJLOLKUKMCI · pith_short_8: UGZHVHJL

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/UGZHVHJLOLKUKMCI7EVBJP4YEB \
  | 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: a1b27a9d2b72d5453048f92a14bf982053cd3a9e2584a3b9be300523a461dda7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07e47aa7c65c2e594ea0adb29c53ab6eb52480ed3b504b60ac3370c5fa89cb9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-08-27T18:17:10Z",
    "title_canon_sha256": "a3c8cef385f4d294dc22776e329acbcf564925fa3cfd04811f071228ab958fc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6165",
    "kind": "arxiv",
    "version": 1
  }
}