Pith Number

pith:REG3CL72

pith:2026:REG3CL72FC6FUM3U5UMXYQ7VGB

not attested not anchored not stored refs pending

A Rigorous Proof of Metric Blow-Up for Pseudospherical Metrics Associated with the Degasperis--Procesi Equation

Mingyue Guo, Zhenhua Shi

arxiv:2607.25293 v1 · 2026-07-28 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REG3CL72FC6FUM3U5UMXYQ7VGB}

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	2026-07-29T01:25:07.249369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

890db12ffa28bc5a3374ed197c43f530429dedf5e7e955f0a337d80a955fa3cf

Aliases

arxiv: 2607.25293 · arxiv_version: 2607.25293v1 · doi: 10.48550/arxiv.2607.25293 · pith_short_12: REG3CL72FC6F · pith_short_16: REG3CL72FC6FUM3U · pith_short_8: REG3CL72

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/REG3CL72FC6FUM3U5UMXYQ7VGB \
  | 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: 890db12ffa28bc5a3374ed197c43f530429dedf5e7e955f0a337d80a955fa3cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12d6978b7dbc14f4f0cc8199575c59853ae263e5afeae0c73eb10fb647efeaff",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2026-07-28T05:04:34Z",
    "title_canon_sha256": "dbafea49bec6e26efb6ec70c3f9ec2735d2dc4c2dc82467672739e792b7766c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25293",
    "kind": "arxiv",
    "version": 1
  }
}