Pith Number

pith:FMSRJQXG

pith:2019:FMSRJQXGHNPHSP33TDYBEI6IPM

not attested not anchored not stored refs pending

Singularity formation in axially symmetric mean curvature flow with Neumann boundary

John Head, Sevvandi Kandanaarachchi

arxiv:1908.02871 v1 · 2019-08-07 · math.DG · 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{FMSRJQXGHNPHSP33TDYBEI6IPM}

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	2026-07-04T23:52:24.277204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b2514c2e63b5e793f7b98f01223c87b0300b550c9150da1ac3d709e8806c8c7

Aliases

arxiv: 1908.02871 · arxiv_version: 1908.02871v1 · doi: 10.48550/arxiv.1908.02871 · pith_short_12: FMSRJQXGHNPH · pith_short_16: FMSRJQXGHNPHSP33 · pith_short_8: FMSRJQXG

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/FMSRJQXGHNPHSP33TDYBEI6IPM \
  | 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: 2b2514c2e63b5e793f7b98f01223c87b0300b550c9150da1ac3d709e8806c8c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a1810caa77a1c0224e73f47634a13fcd4a0bd02b9e619d77532b5f08ef40a98",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-08-07T23:25:19Z",
    "title_canon_sha256": "3f38ca49a60f4f9c447ca2d152729acfd0f40c3f94ec95427b04f5afa65b004b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02871",
    "kind": "arxiv",
    "version": 1
  }
}