Pith Number

pith:TTIW3MC7

pith:2019:TTIW3MC73SCA4UGKHT6V6WEVA5

not attested not anchored not stored refs pending

Compact Sets of Baire Class One Functions and Maximal Almost Disjoint Families

Haim Horowitz, Stevo Todorcevic

arxiv:1905.05898 v1 · 2019-05-15 · 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{TTIW3MC73SCA4UGKHT6V6WEVA5}

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	2026-05-17T23:46:08.168793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cd16db05fdc840e50ca3cfd5f58950764b616a06e481ccbcbd41a3abc46ffce

Aliases

arxiv: 1905.05898 · arxiv_version: 1905.05898v1 · doi: 10.48550/arxiv.1905.05898 · pith_short_12: TTIW3MC73SCA · pith_short_16: TTIW3MC73SCA4UGK · pith_short_8: TTIW3MC7

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/TTIW3MC73SCA4UGKHT6V6WEVA5 \
  | 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: 9cd16db05fdc840e50ca3cfd5f58950764b616a06e481ccbcbd41a3abc46ffce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1795c34c4cc303532159a9c8a4a4c0597dcc692897f6ad59aab18a8da04a5ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-05-15T00:24:18Z",
    "title_canon_sha256": "ce931408522a63bf56067c1ad709e1645c42ca1ab2c8e6f413a2ab1298cff9b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05898",
    "kind": "arxiv",
    "version": 1
  }
}