Pith Number

pith:633QYIFV

pith:2014:633QYIFVIXRJX5G2XJH3MYJ6KJ

not attested not anchored not stored refs pending

An inverse problem for self-adjoint positive Hankel operators

Alexander Pushnitski, Patrick Gerard

arxiv:1401.2042 v2 · 2014-01-09 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{633QYIFVIXRJX5G2XJH3MYJ6KJ}

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	2026-05-18T02:52:03.901086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6f70c20b545e29bf4daba4fb6613e527baa956d76f672dcf58dc5db8a153260

Aliases

arxiv: 1401.2042 · arxiv_version: 1401.2042v2 · doi: 10.48550/arxiv.1401.2042 · pith_short_12: 633QYIFVIXRJ · pith_short_16: 633QYIFVIXRJX5G2 · pith_short_8: 633QYIFV

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/633QYIFVIXRJX5G2XJH3MYJ6KJ \
  | 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: f6f70c20b545e29bf4daba4fb6613e527baa956d76f672dcf58dc5db8a153260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3919bbd11954b73bd70a484e0b4e3a90a8b0940f639a4cb95ca017abb87e6768",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-01-09T15:58:47Z",
    "title_canon_sha256": "0276487c08a370fcc947608bd865b1b49a7a603fc3a478f50d3302f511399431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2042",
    "kind": "arxiv",
    "version": 2
  }
}