Pith Number

pith:PO7UBSEE

pith:2014:PO7UBSEE7ZBHMHQQKBBFLR7OBK

not attested not anchored not stored refs pending

Cartoon Approximation with $\alpha$-Curvelets

Gitta Kutyniok, Martin Sch\"afer, Philipp Grohs, Sandra Keiper

arxiv:1404.1043 v1 · 2014-04-03 · 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{PO7UBSEE7ZBHMHQQKBBFLR7OBK}

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	2026-05-18T02:54:54.719400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bbf40c884fe42761e10504255c7ee0ab7fd608516009c707be7b2c05fb75f40

Aliases

arxiv: 1404.1043 · arxiv_version: 1404.1043v1 · doi: 10.48550/arxiv.1404.1043 · pith_short_12: PO7UBSEE7ZBH · pith_short_16: PO7UBSEE7ZBHMHQQ · pith_short_8: PO7UBSEE

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/PO7UBSEE7ZBHMHQQKBBFLR7OBK \
  | 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: 7bbf40c884fe42761e10504255c7ee0ab7fd608516009c707be7b2c05fb75f40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd5912598aabb405ae1ec3f197635567f4aa8150779b42de8d21004df9e35499",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2014-04-03T18:57:00Z",
    "title_canon_sha256": "10193f634ecdd3a560ef70df7e925f9bc89ae5ef0b83bcd601a4ef828c7b009d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1043",
    "kind": "arxiv",
    "version": 1
  }
}