Pith Number

pith:WSPI7HEG

pith:2019:WSPI7HEGSBXDELH6TZVJOSHB3L

not attested not anchored not stored refs pending

A note on the boundary behaviour of the squeezing function and Fridman invariant

Anh Duc Mai, Hyeseon Kim, Thi Lan Huong Nguyen, Van Thu Ninh

arxiv:1907.04528 v1 · 2019-07-10 · 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{WSPI7HEGSBXDELH6TZVJOSHB3L}

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	2026-05-17T23:40:59.965682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b49e8f9c86906e322cfe9e6a9748e1dac1a5db409402742ae246e89fd431d92f

Aliases

arxiv: 1907.04528 · arxiv_version: 1907.04528v1 · doi: 10.48550/arxiv.1907.04528 · pith_short_12: WSPI7HEGSBXD · pith_short_16: WSPI7HEGSBXDELH6 · pith_short_8: WSPI7HEG

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/WSPI7HEGSBXDELH6TZVJOSHB3L \
  | 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: b49e8f9c86906e322cfe9e6a9748e1dac1a5db409402742ae246e89fd431d92f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bd775a42477be8fe731b6117085ccfdc7bf53ba696d0dcfc2b5a21bcc8f777d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2019-07-10T06:09:43Z",
    "title_canon_sha256": "982424efc8700f08715669b0cd4221c7d1b0e9cfa8a7100241a614b87d075905"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04528",
    "kind": "arxiv",
    "version": 1
  }
}