Pith Number

pith:AQBX4FLM

pith:2012:AQBX4FLM2G43XJO6R3WTXDIM4E

not attested not anchored not stored refs pending

On a gradient flow of plane curves minimizing the anisoperimetric ratio

Daniel Sevcovic, Shigetoshi Yazaki

arxiv:1203.2238 v2 · 2012-03-10 · math.DG · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQBX4FLM2G43XJO6R3WTXDIM4E}

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	2026-05-18T03:21:45.709930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04037e156cd1b9bba5de8eed3b8d0ce10b6f7bc0fb847d6caf14a1155dc8e715

Aliases

arxiv: 1203.2238 · arxiv_version: 1203.2238v2 · doi: 10.48550/arxiv.1203.2238 · pith_short_12: AQBX4FLM2G43 · pith_short_16: AQBX4FLM2G43XJO6 · pith_short_8: AQBX4FLM

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/AQBX4FLM2G43XJO6R3WTXDIM4E \
  | 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: 04037e156cd1b9bba5de8eed3b8d0ce10b6f7bc0fb847d6caf14a1155dc8e715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c856d8fe44559e5f341e0d4cd3c0f8b04ee7182b980a3a3244d51e813bd6e6a",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-03-10T07:23:03Z",
    "title_canon_sha256": "02a8e6bfbfbd50a7d1ff4cbad8d9749ccc2f3dd579a18b266527fbb4bdef01c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2238",
    "kind": "arxiv",
    "version": 2
  }
}