Pith Number

pith:HZQE22UW

pith:2013:HZQE22UW4GCXI5ZKE75NDDPHST

not attested not anchored not stored refs pending

On Removable Sets For Convex Functions

Dusan Pokorny, Martin Rmoutil

arxiv:1309.1304 v1 · 2013-09-05 · 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{HZQE22UW4GCXI5ZKE75NDDPHST}

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	2026-05-18T03:14:07.669582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e604d6a96e18574772a27fad18de794d967d89e58609d231180478adb96975e

Aliases

arxiv: 1309.1304 · arxiv_version: 1309.1304v1 · doi: 10.48550/arxiv.1309.1304 · pith_short_12: HZQE22UW4GCX · pith_short_16: HZQE22UW4GCXI5ZK · pith_short_8: HZQE22UW

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/HZQE22UW4GCXI5ZKE75NDDPHST \
  | 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: 3e604d6a96e18574772a27fad18de794d967d89e58609d231180478adb96975e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94a2eb14f39642464064195fb417b913dd233b12c84ed91004211aab5359f2d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-09-05T10:37:49Z",
    "title_canon_sha256": "c705602caf77f79527f816077cb94cac703da94bc1b1fd5a3c80dbd6db2d0de2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1304",
    "kind": "arxiv",
    "version": 1
  }
}