Pith Number

pith:QHINLDGC

pith:2025:QHINLDGCOAKCKJ6MXRVVEWU2DY

not attested not anchored not stored refs pending

Tangential touch between free and fixed boundaries for the fully nonlinear Alt-Phillips problem

Hui Yu, Yamin Wang

arxiv:2509.02064 v1 · 2025-09-02 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHINLDGCOAKCKJ6MXRVVEWU2DY}

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	2026-07-05T12:03:13.883891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d0d58cc270142527ccbc6b525a9a1e31d2a7fd7b283f9024228cc516866bd0

Aliases

arxiv: 2509.02064 · arxiv_version: 2509.02064v1 · doi: 10.48550/arxiv.2509.02064 · pith_short_12: QHINLDGCOAKC · pith_short_16: QHINLDGCOAKCKJ6M · pith_short_8: QHINLDGC

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/QHINLDGCOAKCKJ6MXRVVEWU2DY \
  | 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: 81d0d58cc270142527ccbc6b525a9a1e31d2a7fd7b283f9024228cc516866bd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2dd10abbe8d8f1ad4a3b4f021326580867199fe54891539a3940d8e1b6d7aab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-09-02T08:04:50Z",
    "title_canon_sha256": "a446fcd50314a3d69f6bb5acfe1fddc704a99349f9ec12037f70ce40cc260cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02064",
    "kind": "arxiv",
    "version": 1
  }
}