Pith Number

pith:WKRSOKA2

pith:2017:WKRSOKA2DQJ4QJ6TPATEIRZHTU

not attested not anchored not stored refs pending

A Finitary Analogue of the Downward L\"owenheim-Skolem Property

Abhisekh Sankaran

arxiv:1705.04493 v1 · 2017-05-12 · 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{WKRSOKA2DQJ4QJ6TPATEIRZHTU}

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	2026-05-18T00:44:37.959419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2a327281a1c13c827d378264447279d29efc0e7f5a3b4074a3a630a1af09565

Aliases

arxiv: 1705.04493 · arxiv_version: 1705.04493v1 · doi: 10.48550/arxiv.1705.04493 · pith_short_12: WKRSOKA2DQJ4 · pith_short_16: WKRSOKA2DQJ4QJ6T · pith_short_8: WKRSOKA2

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/WKRSOKA2DQJ4QJ6TPATEIRZHTU \
  | 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: b2a327281a1c13c827d378264447279d29efc0e7f5a3b4074a3a630a1af09565

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3260ff1db8411687c8b60139d8a3ace98397404a559f2db1f16fe1ede4d3f96f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-05-12T10:09:06Z",
    "title_canon_sha256": "7c5e507fa7f9f92776c921229d2a1b0abacdcfc34a227773a1f653b300701b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04493",
    "kind": "arxiv",
    "version": 1
  }
}