Pith Number

pith:4NTP4XIP

pith:2025:4NTP4XIPVJNSBLNM5TBDIFG3WX

not attested not anchored not stored refs pending

Unbounded-width CSPs are Untestable in a Sublinear Number of Queries

Yumou Fei

arxiv:2510.27012 v3 · 2025-10-30 · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NTP4XIPVJNSBLNM5TBDIFG3WX}

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.

Cited by

1 paper in Pith

Near-Optimal Space Lower Bounds for Streaming CSPs

Receipt and verification

First computed	2026-06-26T01:15:47.033816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e366fe5d0faa5b20adacecc23414dbb5dba5ca0b35a1522d9704289b29db269c

Aliases

arxiv: 2510.27012 · arxiv_version: 2510.27012v3 · doi: 10.48550/arxiv.2510.27012 · pith_short_12: 4NTP4XIPVJNS · pith_short_16: 4NTP4XIPVJNSBLNM · pith_short_8: 4NTP4XIP

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/4NTP4XIPVJNSBLNM5TBDIFG3WX \
  | 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: e366fe5d0faa5b20adacecc23414dbb5dba5ca0b35a1522d9704289b29db269c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c859b286e6d2d84074ce255ff434e10223afda3c7575f4179a6ee46555ed0a4",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-10-30T21:24:51Z",
    "title_canon_sha256": "bede365b6f04a16ad5a24d97918a0b46df9d4565171fed01130f477208ef823f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.27012",
    "kind": "arxiv",
    "version": 3
  }
}