Pith Number

pith:H3NZX7A6

pith:2025:H3NZX7A6U2GQJZLJFL2C4BDZWB

not attested not anchored not stored refs pending

On the minimality of pancake decomposition of surface germs

Davi Lopes Medeiros, Emanoel Souza, Euripedes Carvalho da Silva

arxiv:2505.23976 v1 · 2025-05-29 · math.MG · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3NZX7A6U2GQJZLJFL2C4BDZWB}

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	2026-07-05T11:12:39.356506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3edb9bfc1ea68d04e5692af42e0479b06363f59d343e7cb4fe5223d6e268ab31

Aliases

arxiv: 2505.23976 · arxiv_version: 2505.23976v1 · doi: 10.48550/arxiv.2505.23976 · pith_short_12: H3NZX7A6U2GQ · pith_short_16: H3NZX7A6U2GQJZLJ · pith_short_8: H3NZX7A6

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/H3NZX7A6U2GQJZLJFL2C4BDZWB \
  | 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: 3edb9bfc1ea68d04e5692af42e0479b06363f59d343e7cb4fe5223d6e268ab31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "003964cb9f9ce09d3b75e378fd280c550dd434240ba80b88849bfadd0fe300fd",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2025-05-29T20:00:47Z",
    "title_canon_sha256": "20a1b801e0d23293cf7a37384bc4a0fa2da73ca6703ecff624aad3b1387fcd18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23976",
    "kind": "arxiv",
    "version": 1
  }
}