pith. sign in
Pith Number

pith:3AFLERYZ

pith:2011:3AFLERYZWWQIKOJA5TDNG5T4GS
not attested not anchored not stored refs pending

A survey of the regular weighted Sturm-Liouville problem - The non-definite case

Angelo B. Mingarelli

arxiv:1106.6013 v1 · 2011-06-29 · math.CA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{3AFLERYZWWQIKOJA5TDNG5T4GS}

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 2026-05-18T04:19:04.689448Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

d80ab24719b5a0853920ecc6d3767c3488315a786094881b3f741168c7ab3345

Aliases

arxiv: 1106.6013 · arxiv_version: 1106.6013v1 · doi: 10.48550/arxiv.1106.6013 · pith_short_12: 3AFLERYZWWQI · pith_short_16: 3AFLERYZWWQIKOJA · pith_short_8: 3AFLERYZ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/3AFLERYZWWQIKOJA5TDNG5T4GS \
  | 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: d80ab24719b5a0853920ecc6d3767c3488315a786094881b3f741168c7ab3345
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "8565d2611e2ade086f49ae8be4ed862d888ea82b5fcb0517dd4f0854ff334285",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-06-29T17:32:46Z",
    "title_canon_sha256": "2e775e836e55ac789a42810a9ecdbc1c8b8a0506b027a2877153af624b1d6f9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6013",
    "kind": "arxiv",
    "version": 1
  }
}