Pith Number

pith:PY26QBT4

pith:2024:PY26QBT43KVGF4TPARNPIE5UC4

not attested not anchored not stored refs pending

On length-preserving and area-preserving inverse curvature flow of planar curves with singularities

Jianbo Fang, Yanlong Zhang, Yanwen Zhao, Yunlong Yang

arxiv:2404.11872 v1 · 2024-04-18 · 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{PY26QBT43KVGF4TPARNPIE5UC4}

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	2026-07-05T08:09:31.776343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e35e8067cdaaa62f26f045af413b41709779b3c6c155eeb208162adc81b608e

Aliases

arxiv: 2404.11872 · arxiv_version: 2404.11872v1 · doi: 10.48550/arxiv.2404.11872 · pith_short_12: PY26QBT43KVG · pith_short_16: PY26QBT43KVGF4TP · pith_short_8: PY26QBT4

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/PY26QBT43KVGF4TPARNPIE5UC4 \
  | 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: 7e35e8067cdaaa62f26f045af413b41709779b3c6c155eeb208162adc81b608e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afc1e385dc4cbdfa416f9f77d3c748f35ced4389c0b07b35c2dab982a56a4d2a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2024-04-18T03:16:05Z",
    "title_canon_sha256": "005a385afe200942be931e81b67835894f46395b2f1e4164a8a600e1c79b167d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.11872",
    "kind": "arxiv",
    "version": 1
  }
}