Pith Number

pith:BYYBESFX

pith:2026:BYYBESFX7YIWHXBHLJ5WBSAKG2

not attested not anchored not stored refs pending

Realizing crosscap transpositions as monodromies of singular fibrations

Kenta Hayano

arxiv:2605.17874 v1 · 2026-05-18 · 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{BYYBESFX7YIWHXBHLJ5WBSAKG2}

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	2026-05-20T00:05:02.898119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e301248b7fe1163dc275a7b60c80a36b74133d00491ac5660bc6ffe06b4481c

Aliases

arxiv: 2605.17874 · arxiv_version: 2605.17874v1 · doi: 10.48550/arxiv.2605.17874 · pith_short_12: BYYBESFX7YIW · pith_short_16: BYYBESFX7YIWHXBH · pith_short_8: BYYBESFX

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/BYYBESFX7YIWHXBHLJ5WBSAKG2 \
  | 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: 0e301248b7fe1163dc275a7b60c80a36b74133d00491ac5660bc6ffe06b4481c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "518fe0653067d7bcee87f6d962465d55940910c01283e7c808d12f9ea277d643",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2026-05-18T05:36:52Z",
    "title_canon_sha256": "e96572be76040b1449105ef78f3c13aff7abd32b8042e2ae921bcd00275112c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17874",
    "kind": "arxiv",
    "version": 1
  }
}