Pith Number

pith:RYKQRP7Y

pith:2018:RYKQRP7YIRYOAJVZYOTGZCKOZE

not attested not anchored not stored refs pending

A Blow-up Criterion for the Curve Diffusion Flow with a Contact Angle

Helmut Abels, Julia Butz

arxiv:1810.07257 v1 · 2018-10-16 · 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{RYKQRP7YIRYOAJVZYOTGZCKOZE}

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	2026-05-18T00:02:59.028323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e1508bff84470e026b9c3a66c894ec9066f651d1274de27cd8f2e0acaf0783f

Aliases

arxiv: 1810.07257 · arxiv_version: 1810.07257v1 · doi: 10.48550/arxiv.1810.07257 · pith_short_12: RYKQRP7YIRYO · pith_short_16: RYKQRP7YIRYOAJVZ · pith_short_8: RYKQRP7Y

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/RYKQRP7YIRYOAJVZYOTGZCKOZE \
  | 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: 8e1508bff84470e026b9c3a66c894ec9066f651d1274de27cd8f2e0acaf0783f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48d0bd047223023ef9e5aabc1e9b5a75e4c5f49506885e156dca3976731bcb2c",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-16T20:10:50Z",
    "title_canon_sha256": "69c6ecb124cded542a7f7e1ba4b6aaca33add12eb0b2ba58395467cd13815ae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07257",
    "kind": "arxiv",
    "version": 1
  }
}