Pith Number

pith:5HPVAV2G

pith:2018:5HPVAV2GZHXFMYLOKP65XNZ54Z

not attested not anchored not stored refs pending

On a class of automorphisms in $\mathbb{H}^2$ which resemble the property of preserving volume

Fabio Vlacci, Jasna Prezelj

arxiv:1810.11412 v1 · 2018-10-26 · 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{5HPVAV2GZHXFMYLOKP65XNZ54Z}

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	2026-05-18T00:02:14.226730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9df505746c9ee56616e53fddbb73de6532c92caa5aa2f9106a54d7d4ae369a6

Aliases

arxiv: 1810.11412 · arxiv_version: 1810.11412v1 · doi: 10.48550/arxiv.1810.11412 · pith_short_12: 5HPVAV2GZHXF · pith_short_16: 5HPVAV2GZHXFMYLO · pith_short_8: 5HPVAV2G

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/5HPVAV2GZHXFMYLOKP65XNZ54Z \
  | 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: e9df505746c9ee56616e53fddbb73de6532c92caa5aa2f9106a54d7d4ae369a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e52c474baff849ac492cdf37be4b47105e13af891f224a852a2ac683f4bcc8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-10-26T16:26:52Z",
    "title_canon_sha256": "7d98897498882a5414d8d817d4a9748747ba8a2548e0c1e86c28040fee8ede76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.11412",
    "kind": "arxiv",
    "version": 1
  }
}