Pith Number

pith:K4UU3RB7

pith:2018:K4UU3RB7BMH4YTRKDTAYQJRSPF

not attested not anchored not stored refs pending

Families of superelliptic curves, complex braid groups and generalized Dehn twists

Filippo Callegaro, Mario Salvetti

arxiv:1805.11968 v2 · 2018-05-29 · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4UU3RB7BMH4YTRKDTAYQJRSPF}

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	2026-05-18T00:07:17.444384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57294dc43f0b0fcc4e2a1cc1882632796bac89e81c5d049f2cba6c407cf4a1ac

Aliases

arxiv: 1805.11968 · arxiv_version: 1805.11968v2 · doi: 10.48550/arxiv.1805.11968 · pith_short_12: K4UU3RB7BMH4 · pith_short_16: K4UU3RB7BMH4YTRK · pith_short_8: K4UU3RB7

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/K4UU3RB7BMH4YTRKDTAYQJRSPF \
  | 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: 57294dc43f0b0fcc4e2a1cc1882632796bac89e81c5d049f2cba6c407cf4a1ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39ceba3e81deaa81b38cfc7ce7721e75b80921d4d45517616d73fb729fba1d81",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-05-29T12:28:29Z",
    "title_canon_sha256": "3f087dd740732c5bad13b2c50ed29e5ff9a31e14065d01e9f046e7f8d063ece8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11968",
    "kind": "arxiv",
    "version": 2
  }
}