Pith Number

pith:6KIQHCDE

pith:2016:6KIQHCDECP53VQ47OCVHDTSLR5

not attested not anchored not stored refs pending

A lower bound for the isoperimetric deficit

Agust\'i Revent\'os, Juli\`a Cuf\'i

arxiv:1605.06254 v1 · 2016-05-20 · 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{6KIQHCDECP53VQ47OCVHDTSLR5}

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	2026-05-17T23:46:31.340459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f29103886413fbbac39f70aa71ce4b8f57983938caddfb75a1e4894aa2a247bf

Aliases

arxiv: 1605.06254 · arxiv_version: 1605.06254v1 · doi: 10.48550/arxiv.1605.06254 · pith_short_12: 6KIQHCDECP53 · pith_short_16: 6KIQHCDECP53VQ47 · pith_short_8: 6KIQHCDE

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/6KIQHCDECP53VQ47OCVHDTSLR5 \
  | 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: f29103886413fbbac39f70aa71ce4b8f57983938caddfb75a1e4894aa2a247bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c210066a890ccf64a08e8ffdc628a672404777e009228df3add07f22c94908f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-05-20T09:09:34Z",
    "title_canon_sha256": "7cf81d8f3b7bce02429d89c4fd227add40cd3b20bfe29a5d57531a3b02aab8c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.06254",
    "kind": "arxiv",
    "version": 1
  }
}