Pith Number

pith:DEJFQE2W

pith:2021:DEJFQE2WTTIABTU56GV54CJT7B

not attested not anchored not stored refs pending

A note on the existence of U-cyclic elements in periodic Floer homology

Boyu Zhang, Dan Cristofaro-Gardiner, Daniel Pomerleano, Rohil Prasad

arxiv:2110.13844 v2 · 2021-10-26 · 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{DEJFQE2WTTIABTU56GV54CJT7B}

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.

Cited by

1 paper in Pith

Generic density of periodic orbits of area-preserving maps on punctured surfaces

Receipt and verification

First computed	2026-07-05T03:56:51.448294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19125813569cd000ce9df1abde0933f84deb238bf282c48cbd4a76e55e775b6d

Aliases

arxiv: 2110.13844 · arxiv_version: 2110.13844v2 · doi: 10.48550/arxiv.2110.13844 · pith_short_12: DEJFQE2WTTIA · pith_short_16: DEJFQE2WTTIABTU5 · pith_short_8: DEJFQE2W

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/DEJFQE2WTTIABTU56GV54CJT7B \
  | 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: 19125813569cd000ce9df1abde0933f84deb238bf282c48cbd4a76e55e775b6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0d4577719d25971e463cfd25aea1a60436eaa2da3fcdea9a38dbf19984efe85",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2021-10-26T16:43:47Z",
    "title_canon_sha256": "5f2d2cbb14dec4d4909054f49b7205b9e7aaf5336de854f24aa88cdac08e00a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.13844",
    "kind": "arxiv",
    "version": 2
  }
}