Pith Number

pith:YASN4QL2

pith:2017:YASN4QL27SUIVMBEC6SWR6KQQM

not attested not anchored not stored refs pending

Norm preserving extensions of bounded holomorphic functions

John McCarthy, Lukasz Kosinski

arxiv:1704.03857 v1 · 2017-04-12 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YASN4QL27SUIVMBEC6SWR6KQQM}

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	2026-05-18T00:46:26.701990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c024de417afca88ab02417a568f9508337713a2a3e643a9d1d6b27062450bdeb

Aliases

arxiv: 1704.03857 · arxiv_version: 1704.03857v1 · doi: 10.48550/arxiv.1704.03857 · pith_short_12: YASN4QL27SUI · pith_short_16: YASN4QL27SUIVMBE · pith_short_8: YASN4QL2

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/YASN4QL27SUIVMBEC6SWR6KQQM \
  | 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: c024de417afca88ab02417a568f9508337713a2a3e643a9d1d6b27062450bdeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b50fceed93cb0758587dfb798418e40437735f9f89430259d4fcfda85a3abfc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2017-04-12T17:46:04Z",
    "title_canon_sha256": "a772bcb797618b8ec646f1e340d4a688a18a14e42399ad32cabeedbe6de1d484"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03857",
    "kind": "arxiv",
    "version": 1
  }
}