Pith Number

pith:3V7ZOYSC

pith:2025:3V7ZOYSC25GK7GNJA65ALUOVDH

not attested not anchored not stored refs pending

Novel pathways in $k$-contact geometry

Tomasz Sobczak, Tymon Frelik

arxiv:2505.22294 v1 · 2025-05-28 · math.DG · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3V7ZOYSC25GK7GNJA65ALUOVDH}

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	2026-07-05T11:11:12.686635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd7f976242d74caf99a907ba05d1d519f74d3727830cb0cf6aefca345fcb9841

Aliases

arxiv: 2505.22294 · arxiv_version: 2505.22294v1 · doi: 10.48550/arxiv.2505.22294 · pith_short_12: 3V7ZOYSC25GK · pith_short_16: 3V7ZOYSC25GK7GNJ · pith_short_8: 3V7ZOYSC

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/3V7ZOYSC25GK7GNJA65ALUOVDH \
  | 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: dd7f976242d74caf99a907ba05d1d519f74d3727830cb0cf6aefca345fcb9841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91a51221ef9c2a9fb31d91ffcbf8c023af1bc996c8f7e3de834a3e6b4921b5e6",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2025-05-28T12:32:29Z",
    "title_canon_sha256": "4b6c63809aef97f9168b68c3b73ec3d480bdc03558c6710b2043acaa03b3fca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22294",
    "kind": "arxiv",
    "version": 1
  }
}