Pith Number

pith:OT3JD3WH

pith:2017:OT3JD3WHC43LD5QSHIY2Q6I5BX

not attested not anchored not stored refs pending

Weakly-normal basis vector fields in RKHS with an application to shape Newton methods

Alberto Paganini, Kevin Sturm

arxiv:1705.08463 v2 · 2017-05-23 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OT3JD3WHC43LD5QSHIY2Q6I5BX}

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	2026-05-18T00:11:50.806571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f691eec71736b1f6123a31a8791d0de519921300ce3368d1d0e8d478f64e29

Aliases

arxiv: 1705.08463 · arxiv_version: 1705.08463v2 · doi: 10.48550/arxiv.1705.08463 · pith_short_12: OT3JD3WHC43L · pith_short_16: OT3JD3WHC43LD5QS · pith_short_8: OT3JD3WH

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/OT3JD3WHC43LD5QSHIY2Q6I5BX \
  | 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: 74f691eec71736b1f6123a31a8791d0de519921300ce3368d1d0e8d478f64e29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7718a6aee31e3a1bd0a4ee6658d34d9ba1b896fa57d6576987bc5efad2f25ca3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-05-23T18:19:07Z",
    "title_canon_sha256": "3483f8a3ee0f5d596b739e9b48832bfef07758c77bd3cc0fd1d025bcf79de3fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08463",
    "kind": "arxiv",
    "version": 2
  }
}