Pith Number

pith:2RUI2DDG

pith:2010:2RUI2DDGIDIENXCEJNLHFSMXKP

not attested not anchored not stored refs pending

Linear ROD subsets of Borel partial orders are countably cofinal in the Solovay model

Vladimir Kanovei

arxiv:1004.5542 v2 · 2010-04-30 · 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{2RUI2DDGIDIENXCEJNLHFSMXKP}

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	2026-05-18T00:08:05.627788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4688d0c6640d046dc444b5672c99753c9d12b8ba924686e257f2c1426815466

Aliases

arxiv: 1004.5542 · arxiv_version: 1004.5542v2 · doi: 10.48550/arxiv.1004.5542 · pith_short_12: 2RUI2DDGIDIE · pith_short_16: 2RUI2DDGIDIENXCE · pith_short_8: 2RUI2DDG

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/2RUI2DDGIDIENXCEJNLHFSMXKP \
  | 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: d4688d0c6640d046dc444b5672c99753c9d12b8ba924686e257f2c1426815466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c219f246f08348a898b408b33949a5e1204cc785cec41e745656a892cd49fa4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-04-30T14:39:53Z",
    "title_canon_sha256": "3cb66bbfc1a397d2d867d92adb8f992cdd04f977d8f98af30476fbd49463484c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.5542",
    "kind": "arxiv",
    "version": 2
  }
}