Pith Number

pith:UT6I6XBT

pith:2015:UT6I6XBTARRMHYGP52DKLGJSIR

not attested not anchored not stored refs pending

Linear and nonlinear, second-order problems with Sturm-Liouville-type, multi-point boundary conditions

Bryan P. Rynne

arxiv:1509.06221 v1 · 2015-09-21 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UT6I6XBTARRMHYGP52DKLGJSIR}

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	2026-05-18T01:32:35.567060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4fc8f5c330462c3e0cfee86a599324447334b2a770ba9aff2d88a7bc8d2c198

Aliases

arxiv: 1509.06221 · arxiv_version: 1509.06221v1 · doi: 10.48550/arxiv.1509.06221 · pith_short_12: UT6I6XBTARRM · pith_short_16: UT6I6XBTARRMHYGP · pith_short_8: UT6I6XBT

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/UT6I6XBTARRMHYGP52DKLGJSIR \
  | 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: a4fc8f5c330462c3e0cfee86a599324447334b2a770ba9aff2d88a7bc8d2c198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdcad7378d51006374573f94701e646daae62a0f8bb5927175975bfaaa3d9140",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-09-21T13:34:03Z",
    "title_canon_sha256": "988370e7d39472b9f3739b01819c40640fd2037b8e4cff256b51f4df14868d83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06221",
    "kind": "arxiv",
    "version": 1
  }
}