Pith Number

pith:LTQPAFUI

pith:2016:LTQPAFUIK2CVLFVBAGAYJ7SKOS

not attested not anchored not stored refs pending

An epiperimetric inequality for the regularity of some free boundary problems: the $2$-dimensional case

Bozhidar Velichkov, Luca Spolaor

arxiv:1612.01623 v2 · 2016-12-06 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LTQPAFUIK2CVLFVBAGAYJ7SKOS}

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	2026-05-18T00:51:05.566149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ce0f0168856855596a1018184fe4a749b3da44e9e955aa54e6bca6ce744a914

Aliases

arxiv: 1612.01623 · arxiv_version: 1612.01623v2 · doi: 10.48550/arxiv.1612.01623 · pith_short_12: LTQPAFUIK2CV · pith_short_16: LTQPAFUIK2CVLFVB · pith_short_8: LTQPAFUI

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/LTQPAFUIK2CVLFVBAGAYJ7SKOS \
  | 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: 5ce0f0168856855596a1018184fe4a749b3da44e9e955aa54e6bca6ce744a914

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c9a9c80e027c8249715ff1807f8215bb853580b4a41bc9fe622a2398b88cae5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-12-06T01:38:50Z",
    "title_canon_sha256": "cf0162438142fa37c17d3e484aba0612029b08194c9451e8e1a27b77ffb54455"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01623",
    "kind": "arxiv",
    "version": 2
  }
}