Pith Number

pith:ZEVC3Z4U

pith:2019:ZEVC3Z4UNS2KUOKQ6TBBG4DWUS

not attested not anchored not stored refs pending

On a problem of Pichorides

Odysseas Bakas

arxiv:1902.02319 v2 · 2019-02-06 · math.CA · math.CV · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZEVC3Z4UNS2KUOKQ6TBBG4DWUS}

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	2026-05-17T23:52:31.779873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c92a2de7946cb4aa3950f4c2137076a4b513470d1773496d5d99aa8f6d455fdb

Aliases

arxiv: 1902.02319 · arxiv_version: 1902.02319v2 · doi: 10.48550/arxiv.1902.02319 · pith_short_12: ZEVC3Z4UNS2K · pith_short_16: ZEVC3Z4UNS2KUOKQ · pith_short_8: ZEVC3Z4U

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/ZEVC3Z4UNS2KUOKQ6TBBG4DWUS \
  | 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: c92a2de7946cb4aa3950f4c2137076a4b513470d1773496d5d99aa8f6d455fdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28ef80c2cb9ee620ec4acaa688ecc75f33e11712a0e4ce5d23593bea81bdb489",
    "cross_cats_sorted": [
      "math.CV",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-02-06T18:29:05Z",
    "title_canon_sha256": "5dcf17ac8122237a9b4700581b83a98de7ef9e6d11d41fb30f1bfb5c5e624434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02319",
    "kind": "arxiv",
    "version": 2
  }
}