Pith Number

pith:YCDZ4ZPE

pith:2026:YCDZ4ZPEGCIRPZXLPWSAUBRAYG

not attested not anchored not stored refs pending

Positive Measure of Unions of Variable Surfaces

Alex Iosevich, Krystal Taylor, Zhangze Li

arxiv:2605.27550 v1 · 2026-05-26 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YCDZ4ZPEGCIRPZXLPWSAUBRAYG}

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	2026-05-28T01:04:15.508863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0879e65e4309117e6eb7da40a0620c1a7b7a3e0ca6194371f7eee92e08447a3

Aliases

arxiv: 2605.27550 · arxiv_version: 2605.27550v1 · doi: 10.48550/arxiv.2605.27550 · pith_short_12: YCDZ4ZPEGCIR · pith_short_16: YCDZ4ZPEGCIRPZXL · pith_short_8: YCDZ4ZPE

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/YCDZ4ZPEGCIRPZXLPWSAUBRAYG \
  | 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: c0879e65e4309117e6eb7da40a0620c1a7b7a3e0ca6194371f7eee92e08447a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d733809003a49a5a7493130bd29009aee62470a999e3b436e12830fd004416a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2026-05-26T18:17:54Z",
    "title_canon_sha256": "dc733b75aaa4ab05004912f8b09f65324d2c8146a2fa5cf256f86a832895a419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27550",
    "kind": "arxiv",
    "version": 1
  }
}