Pith Number

pith:AUEZZINC

pith:2018:AUEZZINCEGS3JLCNKZV77KLZQ7

not attested not anchored not stored refs pending

Fridman's invariant, squeezing functions, and exhausting domains

Fusheng Deng, Xujun Zhang

arxiv:1810.12724 v2 · 2018-10-30 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AUEZZINCEGS3JLCNKZV77KLZQ7}

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	2026-05-18T00:01:37.366108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05099ca1a221a5b4ac4d566bffa97987f892adf8b85df86f70aa805befcf2763

Aliases

arxiv: 1810.12724 · arxiv_version: 1810.12724v2 · doi: 10.48550/arxiv.1810.12724 · pith_short_12: AUEZZINCEGS3 · pith_short_16: AUEZZINCEGS3JLCN · pith_short_8: AUEZZINC

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/AUEZZINCEGS3JLCNKZV77KLZQ7 \
  | 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: 05099ca1a221a5b4ac4d566bffa97987f892adf8b85df86f70aa805befcf2763

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1568c3a2574cd27a3747009c307cd30a021aba44d152b98eb471fc59b38c9e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-10-30T13:34:07Z",
    "title_canon_sha256": "36662516be6db3bd942e674bea9ce84653451a11aa71537d7a74059ed3fbd07f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12724",
    "kind": "arxiv",
    "version": 2
  }
}