Pith Number

pith:NZGHJCNL

pith:2026:NZGHJCNL5LKIU3OYHAJ77WFG7W

not attested not anchored not stored refs pending

Finite-Query Collapse and Modal Exact Bases in the SCI Hierarchy

Christopher Sorg

arxiv:2606.13250 v1 · 2026-06-11 · math.LO · cs.NA · math.NA · math.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZGHJCNL5LKIU3OYHAJ77WFG7W}

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	2026-06-12T01:09:48.915204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e4c7489abead48a6dd83813ffd8a6fd8c6fd9e3af1ac029d173041e9f4898cd

Aliases

arxiv: 2606.13250 · arxiv_version: 2606.13250v1 · doi: 10.48550/arxiv.2606.13250 · pith_short_12: NZGHJCNL5LKI · pith_short_16: NZGHJCNL5LKIU3OY · pith_short_8: NZGHJCNL

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/NZGHJCNL5LKIU3OYHAJ77WFG7W \
  | 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: 6e4c7489abead48a6dd83813ffd8a6fd8c6fd9e3af1ac029d173041e9f4898cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89ccec857f27408d2151ed404f728659bcef6d9136c568b4363766ced567490b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.SP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2026-06-11T12:05:51Z",
    "title_canon_sha256": "5599e87e585c6ab7705e587b86128b05cf0425ec662586bd826e4e77561a6e39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13250",
    "kind": "arxiv",
    "version": 1
  }
}