Pith Number

pith:SZF74DNC

pith:2015:SZF74DNCBNPJMHMJWYDXAP3KGT

not attested not anchored not stored refs pending

Almost Souslin Kurepa trees

Mohammad Golshani

arxiv:1510.02926 v1 · 2015-10-10 · 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{SZF74DNCBNPJMHMJWYDXAP3KGT}

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	2026-05-18T01:30:33.336443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

964bfe0da20b5e961d89b607703f6a34d53a157a0de20494bf8b131ea87fadfb

Aliases

arxiv: 1510.02926 · arxiv_version: 1510.02926v1 · doi: 10.48550/arxiv.1510.02926 · pith_short_12: SZF74DNCBNPJ · pith_short_16: SZF74DNCBNPJMHMJ · pith_short_8: SZF74DNC

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/SZF74DNCBNPJMHMJWYDXAP3KGT \
  | 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: 964bfe0da20b5e961d89b607703f6a34d53a157a0de20494bf8b131ea87fadfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77ea648f58e71d7220ef710076063161714e929da2ba1690246c964c3edd61c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-10-10T13:36:04Z",
    "title_canon_sha256": "7dd467aaa0908d4032d83fd7c36ddb90709a825c76735782acf2eb57c8ab81f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02926",
    "kind": "arxiv",
    "version": 1
  }
}