Pith Number

pith:QOM6YBNK

pith:2017:QOM6YBNKKRBQYC5YBDJYSKVITP

not attested not anchored not stored refs pending

A straightforward proof of Carleman estimate for second order elliptic operator and a three sphere inequality

Lorenzo Baldassari, Sergio Vessella

arxiv:1711.06647 v1 · 2017-11-17 · 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{QOM6YBNKKRBQYC5YBDJYSKVITP}

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	2026-05-18T00:30:18.312948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8399ec05aa54430c0bb808d3892aa89bed090bbf7fa2e1d6f956c4f5fec3f85a

Aliases

arxiv: 1711.06647 · arxiv_version: 1711.06647v1 · doi: 10.48550/arxiv.1711.06647 · pith_short_12: QOM6YBNKKRBQ · pith_short_16: QOM6YBNKKRBQYC5Y · pith_short_8: QOM6YBNK

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/QOM6YBNKKRBQYC5YBDJYSKVITP \
  | 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: 8399ec05aa54430c0bb808d3892aa89bed090bbf7fa2e1d6f956c4f5fec3f85a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67ac6da63a3b71cf9c5920b73e68e531db62302b055a94866397e84e5c23ebff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-11-17T17:48:21Z",
    "title_canon_sha256": "c7794c449fa0a8dd05612270938f2ae5bb118eb3ab1563902b6e8956d698fbc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06647",
    "kind": "arxiv",
    "version": 1
  }
}