Pith Number

pith:PK46VMDT

pith:2019:PK46VMDTSFTCS4UP7GK56X4WIT

not attested not anchored not stored refs pending

A note on an expansion formula with application to nonlinear DAE's

Matthias Stiefenhofer

arxiv:1912.10735 v1 · 2019-12-23 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK46VMDTSFTCS4UP7GK56X4WIT}

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.

Cited by

1 paper in Pith

Diagonalization of Operator functions by algebraic methods

Receipt and verification

First computed	2026-07-05T00:28:02.070682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab9eab073916629728ff995df5f9644fbaa679b5635156f7a758402995be9fc

Aliases

arxiv: 1912.10735 · arxiv_version: 1912.10735v1 · doi: 10.48550/arxiv.1912.10735 · pith_short_12: PK46VMDTSFTC · pith_short_16: PK46VMDTSFTCS4UP · pith_short_8: PK46VMDT

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/PK46VMDTSFTCS4UP7GK56X4WIT \
  | 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: 7ab9eab073916629728ff995df5f9644fbaa679b5635156f7a758402995be9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53656d460da6bd9ef2947527096d3bfddc6da575f6d8714df0a2e01d4830aefa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-12-23T11:14:06Z",
    "title_canon_sha256": "fa723a36d35d4d3068e6c35b60a3a7a7336353822f7d68ed1e94b9f924c9ca0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.10735",
    "kind": "arxiv",
    "version": 1
  }
}