Pith Number

pith:PRDL67AD

pith:2016:PRDL67ADDKWVT5WBH6X6DRQH4F

not attested not anchored not stored refs pending

The extension problem of the mean curvature flow (I)

Bing Wang, Haozhao Li

arxiv:1608.02832 v2 · 2016-08-09 · 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{PRDL67ADDKWVT5WBH6X6DRQH4F}

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	2026-05-18T00:00:02.767102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c46bf7c031aad59f6c13fafe1c607e14d49afdb97ddc471624c1972a392bc6c

Aliases

arxiv: 1608.02832 · arxiv_version: 1608.02832v2 · doi: 10.48550/arxiv.1608.02832 · pith_short_12: PRDL67ADDKWV · pith_short_16: PRDL67ADDKWVT5WB · pith_short_8: PRDL67AD

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/PRDL67ADDKWVT5WBH6X6DRQH4F \
  | 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: 7c46bf7c031aad59f6c13fafe1c607e14d49afdb97ddc471624c1972a392bc6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e774fc84151857a4272fbf8948f671a11d2f63aec600da5ab93f53a68894ccee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-08-09T15:21:25Z",
    "title_canon_sha256": "d2cef604c4bf9a75299ec19d84253c7ec0bc6f5e68eb993b98fe38f805280dd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02832",
    "kind": "arxiv",
    "version": 2
  }
}