Pith Number

pith:SADMBOJI

pith:2010:SADMBOJIQFMIBNF3OHSL65PO2K

not attested not anchored not stored refs pending

On n-Tardy Sets

Karen Lange, Peter A. Cholak, Peter M. Gerdes

arxiv:1101.0228 v1 · 2010-12-31 · 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{SADMBOJIQFMIBNF3OHSL65PO2K}

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	2026-05-18T04:32:10.777786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9006c0b928815880b4bb71e4bf75eed2b30821e0df6a749666d35209c6039f3b

Aliases

arxiv: 1101.0228 · arxiv_version: 1101.0228v1 · doi: 10.48550/arxiv.1101.0228 · pith_short_12: SADMBOJIQFMI · pith_short_16: SADMBOJIQFMIBNF3 · pith_short_8: SADMBOJI

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/SADMBOJIQFMIBNF3OHSL65PO2K \
  | 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: 9006c0b928815880b4bb71e4bf75eed2b30821e0df6a749666d35209c6039f3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7bbaad77f2112afaf2ef06337ed00f580406cad238a604e696eb922c1cc2c6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-12-31T10:25:35Z",
    "title_canon_sha256": "178da36f2b713e46e67535e5b8820dccaf37ca7b6cc7cf7fbc340aa328defe5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0228",
    "kind": "arxiv",
    "version": 1
  }
}