Pith Number

pith:B7IPF25P

pith:2022:B7IPF25PDD5COORSEKSSTBD6BV

not attested not anchored not stored refs pending

Contact homology and higher dimensional closing lemmas

Ipsita Datta, Julian Chaidez, Rohil Prasad, Shira Tanny

arxiv:2206.04738 v2 · 2022-06-09 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B7IPF25PDD5COORSEKSSTBD6BV}

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	2026-07-05T05:13:34.682554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fd0f2ebaf18fa273a3222a529847e0d7b8988f5db042589ac54cd6f4fe3ad6a

Aliases

arxiv: 2206.04738 · arxiv_version: 2206.04738v2 · doi: 10.48550/arxiv.2206.04738 · pith_short_12: B7IPF25PDD5C · pith_short_16: B7IPF25PDD5COORS · pith_short_8: B7IPF25P

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/B7IPF25PDD5COORSEKSSTBD6BV \
  | 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: 0fd0f2ebaf18fa273a3222a529847e0d7b8988f5db042589ac54cd6f4fe3ad6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f9161b1e42e17cad9416ce2deadb2d3c5a879a9cf80cad45662314f3c227f5",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2022-06-09T19:19:03Z",
    "title_canon_sha256": "2bafe6527784c7107a8a1a0fb4df6adf68cd588a79a5270138887cb1edb47482"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.04738",
    "kind": "arxiv",
    "version": 2
  }
}