Pith Number

pith:CFGWH4AU

pith:2010:CFGWH4AUYW3YP5SIRTRM6KIATF

not attested not anchored not stored refs pending

Inaccessibility and Subinaccessibility. In two parts. Part I

A. Kiselev

arxiv:1010.1956 v4 · 2010-10-10 · 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{CFGWH4AUYW3YP5SIRTRM6KIATF}

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	2026-05-18T04:11:08.475947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

114d63f014c5b787f6488ce2cf2900996dc9004116be3d4d6bf6fe208c97566d

Aliases

arxiv: 1010.1956 · arxiv_version: 1010.1956v4 · doi: 10.48550/arxiv.1010.1956 · pith_short_12: CFGWH4AUYW3Y · pith_short_16: CFGWH4AUYW3YP5SI · pith_short_8: CFGWH4AU

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/CFGWH4AUYW3YP5SIRTRM6KIATF \
  | 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: 114d63f014c5b787f6488ce2cf2900996dc9004116be3d4d6bf6fe208c97566d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c8ddd7cdf0800d7c2731f1b939d498c6fbaa8e112ccc48af3e65ff7c53837cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-10-10T18:57:58Z",
    "title_canon_sha256": "37b6f19df7b56d01ebd9857c04576745872bf0e5e0f6d5e41089af3105fcb9dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1956",
    "kind": "arxiv",
    "version": 4
  }
}