Pith Number

pith:VKAXJSLF

pith:2019:VKAXJSLF5XTFC72WS54C3ICMXL

not attested not anchored not stored refs pending

Constant angle surfaces in 4-dimensional Minkowski space

Juan Monterde, Pierre Bayard, Ra\'ul C. Volpe

arxiv:1903.01554 v1 · 2019-03-04 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKAXJSLF5XTFC72WS54C3ICMXL}

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	2026-05-17T23:39:54.800784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa8174c965ede6517f5697782da04cbaf638d1df4a1535325f41b8bae53b50f2

Aliases

arxiv: 1903.01554 · arxiv_version: 1903.01554v1 · doi: 10.48550/arxiv.1903.01554 · pith_short_12: VKAXJSLF5XTF · pith_short_16: VKAXJSLF5XTFC72W · pith_short_8: VKAXJSLF

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/VKAXJSLF5XTFC72WS54C3ICMXL \
  | 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: aa8174c965ede6517f5697782da04cbaf638d1df4a1535325f41b8bae53b50f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c101a9aa7675aea0ffbc3357c61cc2fbe5622873eac5c7943d74dc09ed7a857",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-03-04T21:41:42Z",
    "title_canon_sha256": "a83ba1a5f0e7a9698ef28325d4bcd126dbc193d8d7ac389a6f01e38ba7da15ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01554",
    "kind": "arxiv",
    "version": 1
  }
}