Pith Number

pith:5QVFDE7H

pith:2017:5QVFDE7H2A6FFTERXAMEFPKG7D

not attested not anchored not stored refs pending

A gradient flow for the prescribed Gaussian curvature problem on a closed Riemann surface with conical singularity

Yunyan Yang

arxiv:1706.08237 v1 · 2017-06-26 · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QVFDE7H2A6FFTERXAMEFPKG7D}

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	2026-05-18T00:41:43.103300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2a5193e7d03c52cc91b81842bd46f8eb2dd3f74415ed4230f7146cf2e1ee46

Aliases

arxiv: 1706.08237 · arxiv_version: 1706.08237v1 · doi: 10.48550/arxiv.1706.08237 · pith_short_12: 5QVFDE7H2A6F · pith_short_16: 5QVFDE7H2A6FFTER · pith_short_8: 5QVFDE7H

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/5QVFDE7H2A6FFTERXAMEFPKG7D \
  | 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: ec2a5193e7d03c52cc91b81842bd46f8eb2dd3f74415ed4230f7146cf2e1ee46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca9d9f4cc34afc6a596e5940220bdc4fd1d2ab86bfcf39cdb41c8fd66061d925",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-06-26T05:35:21Z",
    "title_canon_sha256": "ee0d149495d4f53856e1ac0c84648828d7670731f9b0b351ab58f646c6140a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08237",
    "kind": "arxiv",
    "version": 1
  }
}